I have several other Olympus camera and thus is my favorite daily carry around. Olympus makes superior cameras for the price point.

I;ll start with the bad...

1) No battery charger. I have to use the camera, and a USB cable, to charge the battery. I bought a spare battery with this, and now I can't use the camera while a battery is charging. Since I plan to use this hiking to replace my old Pentax waterproof camera it probably isn't a major issue, but it is disappointing.

2) No manual. It did come with a large sheet of paper covered with small writing in many languages. Not much there though beyond how to charge the battery and turn it on. In specific, I bought an LB-T01 accessory which tells me to check the manual for installation instructions. There are no such instructions. Most likely, this piece of paper isn't really the manual. The manual is likely available online only, which makes it useless for my purposes as the times I will need the manual are the times when I don't have internet.

3) It feels flimsy. My only comparison in this category is a 9 year and 2 day old Pentax waterproof, but that camera feels much more solid than this one. The doors on this one just don't seem solid enough and reliable enough to keep water out. The first thing I did when I bought that Pentax was drop it in a pot of water to photograph it laying there in the bottom, then I took a selfie out of the bowl through the water. I don't trust this one enough to do that.

Almost everything in the menus were intuitive. The only problem I had was enabling raw image capture. I had to google that because it eluded me in the menus.

Need more time with it to talk about all the good things in detail.

UPDATE: I've had a chance to look over the pictures I took. Overall, it was really hit or miss for me. Any kind of low light or shadows was definitely a miss. This camera seems to do well in bright lights and not so well in anything less than bright lights.

The quality is pretty good in bright lights, which is good. My previous waterproof camera, purchased a little over nine years ago, didn't really take good pictures in any circumstance. This one doesn't compare to my regular camera, but it does very well for how small and light it is.

The lack of a manual and a battery charger are still serious limitations, but the camera is pretty simple once you learn a few of its idiosyncrasies, so the manual isn't needed once you've read it a time or two. I have a third party battery charger on the way, hopefully it works.

The raw mode works well, which was most of the reason I bough this camera. Finding the raw mode was hard, but this is my first Olympus camera, so maybe it was where the Olympus people expect it to be.

It only takes SD cards, which is miserable, but I already owned a couple because of my IR camera, so I can use them here as well.

Overall, still happy.

easy to use

Great camera for a fair price. Pictures are very good, much better than other waterproof cameras I tried. Still, I guess I'm a bit spoiled by my old Canon DSLR. Tons of features most of which I won't use. Stacking and bracketing seem to work well.
A couple of minor complaints. First, the battery life isn't great but that's no secret. I bought an extra battery and charger to cope. Second, the lens ring that the camera comes with is purely cosmetic and will not take a lens cap. So, for an additional purchase I got the lens ring adapter which comes with a lens cap. The extra purchases add up and it would be nice if Olympus made the extra battery, charger, and lens ring/cap part of the package at the current price. And finally, and what concerns me the most, is that the zoom lens function is noisy, clearly audible to this old man. The real problem however is that the noise is picked up by the microphone while taking video and produces a disagreeable hum in the background of resulting videos. I'm going to try to contact Olympus to ask if the zoom is normally that noisy or if my unit is defective. We'll see how that works out.
Olympus did accept the camera for warranty work on the noisy zoom feature. Hopefully it works properly when I get it back.
I got the camera back from Olympus warranty service recently and they told me that it is working fine and that the noise from the zoom lens is normal. So, they have designed a $500 camera that has a zoom lens that is so noisy it is overheard when making a video with the camera. They even had the nerve to suggest using an external mic for recordings.

I bought this as a new everyday-carry camera after finally getting sick of the pointless madness of smartphone cameras. It's worth it, if you ask me.

Good stuff:

- Decent picture quality in daylight, but likely outperformed by a fancy phone.
- Outstanding picture quality at night, way beyond what any phone I've seen can do.
- Decent optical zoom, though only a little bit of it.
- Easy to cram into a back pocket without worrying about damaging it. Nice build quality without being too excessively bulky.
- Starts up quickly; ready to go in about one second from pressing the power button. I really appreciate this, since one of my biggest frustrations with phone cameras is how they often take insane amounts of time just to start up.
- Takes RAW photos.
- Manual focus, which I was surprised to find because I was assured by the reviews I read that it did not have manual focus. It sure does, though, and it's surprisingly good. The super-macro setting is very impressive too.
- MicroUSB charging, which is less nice than USB-C, but much better than the terrible proprietary connector that the old models had.
- Impressive waterproofing. Unless you're a scuba diver, this is basically a true underwater camera (and if you are, I hear there's a deep-water housing available too). It's not like phones tend to be where they claim it's waterproof, but then specify in the fine print that it's only good to one meter of depth for half an hour or whatever - no, this is a camera you can actually take swimming with you.

Bad stuff:

- There doesn't seem to be any exposure bracketing function apart from the internal HDR scene mode, which is frustrating because the scene mode processing is terrible (see next point).

- Seems to have an extremely mediocre image processor, maybe not even any better than the one included in the earliest models in the Olympus Tough series. The JPEGs it produces are extremely crunchy (RAW is worth using for this reason), and the scene mode filters are kind of a joke. You can't capture RAWs when using them, and it only saves 3-MP photos despite this being a 12-MP camera (which is already a little on the low side compared to what phones are doing these days, especially for a camera that costs about the same as a decent phone). If you aren't planning on shooting RAWs all the time and doing all your processing afterwards, I really don't recommend this camera.

- Almost every preset mode locks out most of the manual controls, seemingly for no reason. For example, if you're using the candlelight mode, you're simply not allowed to use manual focus. There doesn't seem to be any particular reason for this, since the focus is entirely independent of anything candlelight mode is actually changing (exposure, aperture, and sensitivity, I guess), so this makes no sense. Also, every time the camera silently changes your settings like this, it doesn't change them back when you return to a mode where they're allowed again, making it an ongoing hassle to go through and put everything back how you want it. The frustration of this is quickly training me to never touch any of the scene modes or other presets. It's really aggravating to go out and take a bunch of photos, only to discover that none of them were saved as good-quality RAWs because the camera silently turned off RAW capture on me.

- Video files are limited to 4GB in size, even when using an exFAT SD card (so this is not a real technical limitation, just an arbitrary one imposed by lazy code). Worse still, they simply did not bother to add any way to make it automatically restart recording when hitting the file size limit (which would have been a trivial software modification that is already seen in other Olympus cameras), and if even that wasn't bad enough, there aren't even any low-resolution video format options that could squeeze more time out of the 4GB limit. The longest video you can record with this camera is 29 minutes long, period. All of the possible workarounds have been defeated, seemingy for no reason, and most formats are limited to even shorter durations (around 10 minutes for 1080p60, 5 minutes for 4k30, and just a few seconds for the high-speed modes). Despite the marketing suggesting otherwise, this is NOT a video camera. If you're buying this to record video, expect to be disappointed.

Overall, I'd say that this is a decent camera to use for basic indoor and outdoor photography, especially in low-light conditions. While it's hardly a proper DSLR, it has enough manual controls to at least not be a downgrade from smartphones in that regard, and it's a lot more likely to survive an exciting trip than either of those are. It's far from perfect, and the video limitations are a huge letdown, but I think I do still prefer it over a horribly busted smartphone camera.