Excellent split mechanical keyboard. Since I've been working from home for the last year, I decided to try a split keyboard for the better ergonomics - reducing Ulnar Deviation and Forearm Pronation. Its been a few weeks since I started using the Mistel MD770, and I've really noticed the difference. My wrists and hands are not as sore after typing for extended periods of time. And the learning curve for the split keyboard was really easy. My typing speed on my old keyboard was about 55 wpm. When I first started using the Mistel it initially dropped a tiny bit to about 50 WPM. But after a couple weeks my typing speed has actually improved to about 60 WPM.
I'm using the Cherry Blue switches, which have a nice 'click' which I feel helps improve my typing. I was a little worried that they might be to loud, but the sound is quieter than I expected.

This keyboard is great. The build quality is good, and the ability to split the keyboard is much more ergonomic. I went with MX Clears and am very happy with it.

I got my MD770 with silent reds and WITHOUT RGB backlighting. I also own a Mistel Barocco WITH RGB backlighting and RGB silent reds. I really like both keyboards. I use one at work and one at home.
What I like better about my Barocco vs my MD770:
Translucent keycaps allow backlighting to show through. This is the main reason I didn't bother with LED backlighting on the MD770.
I use my Barocco for coding at work and like the smaller footprint on my messy desk.
What I like better about my MD770 vs my Barocco:
The keyboard feels just a bit more solid.
I think it sounds better and a bit less loud (both keyboards have silent reds but perhaps the RGB silent reds are different).
IMO the keyboard has a better position for the '6' key (on the left side as opposed to the right on the Barocco)
Plus I think the position of the '6' key is a bit more "standard" when compared to competitive split keyboards.
The umbilical cable between the keyboard halves appears to be of higher quality than the Barocco.
More dedicated buttons on the 75% layout can be better for some games.
Uses USB-C connectors instead of old school USBs.
Tenting capability provided with included spacers
What I like about both keyboards:
With the split keyboards I can set the right spacebar to the Fn key which gives me convenient access to arrows (Fn-i/j/k/l) to access previously typed commands quickly.
Both keyboards have onboard memory and don't require host tools or drivers.
Both keyboards have a high quality look and feel.
Both are compatible with Windows, Linux and Mac
Final thoughts:
I think that if Mistel would have provided translucent keycaps on the MD770 I would have gotten the RGB version instead and this would have been the PERFECT RGB keyboard for me! I also feel that overall the MD770 (75% vs. 60% aside) design is an improvement over the Barocco.