I'm typing on an UHK v1 right now. I've been using it for a year or so and I love it. As the other commenter said is just a really high quality split keyboard with great software.

I would really recommend anyone who looks into buying one to also buy the palm rest since it's a pretty thick keyboard. I use a tenting setup and I don't think I would be able to do it comfortably without the palm rests.

A few months ago the key cluster arrived as well - it feels kind of gimmicky though since all I use it for is play/pause/next song and to switch to my chat workspace. Others might have better use for it though. The scroll wheel is nice but I'm already used to the mouse layer on the keyboard, so I seldom use it.

My only gripe is the USB-connection. The v1 uses a mini-USB connection that I felt would be the first thing to break on the keyboard (since the rest of the keyboard feels like it would outlive me), so I soldered one of those magnetic cable heads to the keyboard and bought a few cables that I have lying at every desktop I use, "mag-safe".

I’ve used one for over a year and love it. Their software is easy to use for rebinding keys and setting up layers, the build quality is great, and the tented configuration has helped me with occasional wrist pain.

I haven’t used the new UHK, any of their addons, or the palm rest, so I can’t speak to those.

Did you use any other comparable keyboards beforehand and how did they compare? And which switches did you get. I borrowed a daskeyboard [0] from a friend with Cherry Brown switches which I like but I think a little more actuation force would be nice. Do you know anything about the Brown Boxed which uhk offers? Are they exactly the same as the regular ones except with more actuation force?

[0]https://www.daskeyboard.com/de/daskeyboard-4-ultimate/

I looked at some other split keyboards online and determined the UHK would be best for me because of their customization software (UHK agent), adjustable feet for tenting, and module system. My UHK has their brown switches because I didn’t enjoy the blues I was using before. They seem just like cherry mx browns to me.

I haven't used that keyboard or those switches, but when I was building my own (from a kit) I purchased a "switch tester" with about 80 different keys. I found the type I liked, then sold the tester for about 90% of what it cost -- I think I used /r/MechMarket to do that.