I had a KMI K-Mix. It wasn’t bad but it wasn’t great either. The touch faders were finicky and I found my self always using the shift slider to move them in increments rather than trying to slide to specific spot like a normal fader. Maybe I just have sweaty hands.
I had to fight with it a couple of times where I thought it was broken. I mostly used it in standalone mode but I tried it with my iPad a couple of times. It didn’t work at all with AUM and was very finicky. After I did that I couldn’t get it to pass through sound for the life of me in stand alone mode. Turns out you have to change settings back through the software to get it to work in stand alone mode again.
I was sort of fed up with it and decided I didn’t need any of the other features. I pulled out my mackie vlz mixer and plugged all the same gear in and the sound clarity and definition of sounds was like night and day. I also noticed the volume output for it was fairly low. Either way after hearing the comparison I sold it that day.
Just an FYI of my experience but you should test it out if you’re interested, just make sure you can return it if you don’t like it. Form factor is great and it kind of looks cool with all your other gear in the dark.