The keys on the PC-200MKII are without doubt high quality. However 49 keys are a bit on the low side for my liking, although Roland did include an Octave Up/Down button. You can transmit 128 program change messages, as well as velocity, aftertouch, MIDI-volume, and Pan. A nice feature is the Data Entry slider which enables you to make quick adjustments in realtime. Furthermore you have the opportunity to control chorus, reverb, and other feature via GS. This works in system much like the remote control in Cubase. Only get this (or little brother PC-150) if your budget is tight.