This is a very inspiring VST. The overall sound quality is incredible and I can get a lot of variations from one instrument. Some of the notes seem to have a bit of a rattle or dissonance at certain velocities, and there is rare occasion where a note will stick out like a sore thumb among the rest especially in a riff or arpeggio.
I love the ambience you can create with Cloudrum, and the internal effects are brilliant. If there was a version (paid or free really) that had more drum types featured I would definitely get it.
This thing sounds awesome, but be careful using it in a track with the GUI open. Maybe it's just my setup that's shitty, but it's crashed REAPER 3-4 times on me now, with the GUI open, but goes fine when it's minimized.