This is my third keyboard from Nuphy and it did not disappoint. I got a connectivity issue once when using it with a 2.4GHz receiver, but so far it's been a one off and I had the keyboard for a month now. Extremely happy with this Christmas gift from my wife.
I usually can't stand linear switches, but Blush Max don't even feel like linear switches to me. I can't describe how much I love typing on them (though it took a few days getting used to) and how silent they are. I had a "how can it be?!" reaction :) No wonder Blush Max are sold out.
New Nuphio.io software is awesome, it's plug-and-play and you don't have to install anything, you just open a browser page. Gone are the days of 200MB drivers you had to download and keep on your computer to use a few times and never again.
I much prefer the shape of the keycaps in this v2 IO version compared to the v1 I also have, and the centered labels on the keycaps. It just feels more modern. My wife is now a very satisfied owner of my older Halo75 v1 and sleeps soundly while I type away on Halo75 IO in the bedroom :)
The only thing I want now is a USB-C receiver. Maybe Nuphy can sell one separately? I would buy it.