I'm not primarily a keyboardist, but I use them; in this case it would surely be tricky to play anything that uses the black keys much; your hands have patterns memorized that (I'd imagine) would be tough to adapt to having the black keys on a separate row.

But because it's MIDI, it really does depend on what you're building, and it might not matter. Recording simple snatches of melody would be fine if you keep away from chromatic lines -- e.g., if you want to add a line that's in C minor, just record it in A minor (all white keys except maybe the G#), then transpose it in a few seconds.

You wouldn't play the Flight of the Bumblebee on it, though.