This is a great product. I highly recommend. I've used three other Matrix units, that did not compare, plus No Hassle has treated me very well. The day I ordered the product, No Hassle contacted me and said a newer version would be available in a few days with downscaling, updated web interface and new chips, no extra cost. They asked if I would wait a few days for shipment of the new model. Of course I said yes. Once received, the set up was very easy, IP control worked right away, and I had no issues with EDID set-up. I recommend going to the No Hassle support page and download the manual.

After set-up I downloaded the app and selected the 8X8 matrix. The app said I was connected to the device, but it did not work. I notified customer support and within minutes they contacted me and fixed the issue. They had me select a different Matrix unit in the app and it works perfectly.

Still can't believe it's only hours after I received the unit and it's completely set-up and working. I had other units that either took days to set-up correctly, or never did work.

If your thinking about buying this device I say go for it!

Great product, Great price!

Great technical support and easy to use, first time is really confused setup the app, but tech support help quickly.
Really easy to setup and simple to use.

There are a handful of 8x8 4K HDMI matrix switches in this price range; we went with the No Hassle A/V unit because of their responsive support. We almost always got responses to our support questions within an hour (and usually within 20 minutes), and the company was unfailingly helpful in addressing our issues.

The switcher itself works as advertised, with minimal delay switching between sources. The user interface is minimal - great if you're just switching sources, but it starts to get problematic if you want to start doing anything complex like listing all the EDID settings for current inputs and outputs. And the user manual - which clearly wasn't written by No Hassle, and seems to have been translated from another language - isn't very informative. That makes No Hassle's stellar support even more important when you're deciding on a switcher.

And that's really the bottom line: there's not a lot that differentiates 8x8 4K HDMI switchers at this price point. Most of the manuals are exactly the same, and most even have the same control layout and functionality. No Hassle's support is the difference between a temporary inconvenience and an unusable device.

If you are looking for a fully functional HDMI switch this is the one for you. This unit can switch 480P up to 4K HDR (audio 2.0  7.1 bit stream), HDMI pass-throughs are great to have if you would like to use a down scaler such as HDfury Vertex to take standard 4K to 1080P ( I had standard 4k on input 1 and used pass-through 1  vertex  Input 8 allowing me 4k (input 1) and 1080P(input 8) from same signal to feed 4k TV(in 1 -> out 4) and 1080P projector (in 8 -> out 5) at the same time. The digital RCA/PCM and 3.5mm output audio outputs allow you to extract audio from each respective HDMI output. This is very handy if you want to use your AV receiver to play a 2-channel audio to your larger speakers and not be stuck with your poor TV speakers. But keep in mind the audio cannot be extracted if your input is a 5.1 or 7.1 bit stream audio. It must be PCM audio. I am able to control the switch via I/R with my Harmony Ultimate hub remote control. You can also control it via IP address with a PC or Phone app. I was able to mount unit in my rack with the provided hardware.
Limitations: The switch doesn't upscale or downscale video or audio. The 3.5mm analog / digital audio out can only extract audio from non-bit stream signals (NON-PCM audio),
Strengths: Unit is very well constructed, high flexibility with HDMI pass-through port, SPDIF / analog audio outs (this is a must feature for 2nd zone with AV receiver 2 speaker setup), you can switch any one of the 8 inputs to any one of the 8 HDMI outputs. You can control the switch via infra-red remote or via IP address.

I'm using to work with multiple 4k compatible Computers and Screens. Have tried a number of kvms and matrix switches, this was the only one that worked consistently with 4k/60hz signals, has saved me hours of frustration; well worth the price.

Pluses:
-Simple to set up, works out of the box
-Good vendor support - web site provides extra info and support via email has been quick and effective
-Web interface simple and intuitive - good control of resolutions and EDIDs, up to 8 presets can be configured
-Infra red unit works well, also compatible with broadlink IR controller (I am using with home assistant to automate different scenes)
-Works consistently, I have been using for a couple of months now: switches between sources quickly, monitors lock in to signal and at correct resolution every time.

Also comes with phone app and serial comms, plus support for ARC and CEC - have not used these

Areas for improvement
-fan noise (vendor will supply units with silent fans -recommend if using for home theater or other noise sensitive environments)
-no physical power switch on front panel - (remote does have power toggle)

Tips
Use quality branded HDMI cables if you are running 4k/60 - particulary for longer runs