I am not on a keto diet so I cannot comment on the effects the bar has on ketosis. However, I can comment on how the bar looks and feels and how it tastes.
1. Look'n'feel: Packaging looks premium and is extremely easy to open and close. Is it weird to love how easy and perfectly the bar opens? It is so easy to take it out of its wrapping and put it back into it in case only half of the bar is eaten. I am often frustrated by how difficult it is to open other snacks nicely. For example, I don't think I have ever opened a Cliff bar smoothly and evenly on both sides. With this keto bar the packaging itself is a perfect 5 out of 5 stars!
2. Consistency: Ok, I have to admit, the first time I tried it, I would have probably given it 4 stars for consistency and 2 stars for taste. The reason is that I was initially surprised by the salty after taste. Now, after eating a whole box of those over the past month, I would give the consistency 5 stars and the taste maybe 4 stars. I really enjoy the consistency now because there aren't any hard pieces in the bar (many other bars have very hard nuts for example that can hurt my gums). It feels easy and smooth to chew. Many other bars like the KIND bars have hard and sometimes sharp nuts that can lead to inflammation of my gums. None of that with the keto bar.
Taste: As I mentioned 4 stars is what I would give the taste. It is because I haven't still fully gotten over the weirdly salty aftertaste of the bar. That being said, while the bar doesn't taste perfectly delicious, it is still for the most part a very good tasting bar. Moreover, I feel satisfied and fulfilled after eating the bar. It doesn't cause a sugar-rush that many other bars do which just makes me want to eat more.

Overall I would give the bar 4-4.5 stars. I think I will make this my go to snack in future. It feels healthy, doesn't cause inflammation and doesn't cause a sugar high either.

Taste: Is it like eating real caramel? Of course not! But it's flavor is close enough for me to enjoy eating it. And yet not so close to a candy bar that I'm craving a second bar.

Ingredients: Besides the IMO and natural flavoring, ingredients are on point! BUT those two ingredients are very problematic and would not eat every day

Price: At regular price, $40 for 12 is $3.33 a bar! Yikes, no thank you! I bought mine on sale for $30 so came out to around $2.5 for a bar. That should be the everyday prize in my opinion

Texture: Disintegrates in your mouth and just kinda of falls apart. I personally don't mind it, but not everyone will like that.

Size: The bars I got filled out the size of the packaging. I know I saw a review on here that showed it was only half the size of the package. That almost made me not buy it. But thankfully that was not the case for me, it was a full bar length.

Final thoughts: They are pretty good, but the price is too expensive to make these bars an everyday thing. I would just use it more as a treat for when I'm feeling like I want some caramel

So, I bought these because I read the company's founders' book. The book was great, and quite a bit more scientific than diet-fad-ish. It taught me to do a cleaner keto, to avoid sugar alcohols and low-carb sweeteners, count total carbs instead of net carbs, eat only "real" foods I can pronounce, and avoid all vegetable oils like the plague. In the book, they talk pretty extensively about how their company makes bars and supplements for keto because so much of the stuff out there is just high-priced garbage. (Agreed.)

These show up, and lo-and-behold, they've got 11 total carbs for a bar the size of a slightly-larger fig newton, so much stevia in them dentists within ten miles instinctually perked up like lions on the Serengeti, a bunch of stuff I can't pronounce and have no idea what it's there for, and it has sunflower lecithin (aka, oil). So much for that whole, "˜only accept oils from things that are naturally oily like coconuts and olives' and "˜avoid cheap oils like the plague.' I'm sure the company's founders have wonderful rationales for all this, but it seems rather to go against their own rules. I don't know. Maybe it's a packaging issue and they should explain it better on the label?

Oh yeah, and they taste pretty gross. No almond flavor, no chocolate flavor, just chemical sweetness.

EDIT: so, I tried the other flavors, and they're good. I think the almond butter brownie ones just aren't. I also think Amazon probably mishandles them (think letting them melt and resolidify multiple times), because the weird and unappetizing texture"”rock hard lump sitting in a pool of oil"”isn't intentional.

I thought it was good. I got the peanut butter chocolate chip. You have to understand that its not going to taste like your regular chocolate bar. My husband hated it, but I liked it.

I could definitely taste the sea salt/caramel flavor. Subtle but perfect. The texture, though, was not to my liking.