MPK Mini MK3 Black : It works, mostly.

This is one of the most affordable and common MIDI keyboards. It is fine. The included software is okay, but it serves very little purpose for me. The construction is very cheap and light, but for this price - it's fine. I have used it a lot and it does the job. The expression knob is rather flimsy, but fun to use. The worst issue this MIDI keyboard has is the velocity curve. In order to reach the optimal dynamic range of most VSTi plugins, one needs to bash the keyboard hard. This can be fixed by holding the "full level" key and editing the dynamics through the hidden menu. However, the fix only worked until the keyboard was disconnected and then this had to be done again. This might be an issue with my particular product, but I have heard similar feedback from other users.