I use AKAI MPK Mini Mk3. It's okay, the key action is quite good for the price. The X/Y joystick is annoying though. But I still prefer its action to Arturia's

I use AKAI MPK Mini Mk3. It's okay, the key action is quite good for the price. The X/Y joystick is annoying though. But I still prefer its action to Arturia's or NI's. They feel very rubbery. The best compact (albeit expensive!) controller I've ever tried was AKAI MPK 225. The action feel so pleasant. I'm not really a good key player though so YMMV.