There were issues with sticking keys on the microPC. On mine the mouse buttons can get wedged under the fascia at the bottom. Overall pretty happy with the keyboard though.
I don't know about the microPC, but I used the GPD Win keyboards before (1 and 2) and the key placement was quite awkward.
I used my plastic human brain to get used to the key placement. Now I can type quicker than on a smartphone. It's all in your head, man.