Mainly good. Very good even. The guy (Per) used to do the Nord pianos. Maybe still does. The original Rain Piano was the ultimate Tom Waits upright. This version, Rain Piano Mk2, was launched 10 years ago:
http://forum.cakewalk.com/m/tm.aspx?m=3003046&p=1
Creative Edition is $99 if you got the (free) PolyMax, which you could still get with a free month of LoopCloud.
Also, this lowers Diamond Edition to $319.