Hi - I'll be brief. I purchased the above keyboard because I could mute and un-mute as many as 16 different sounds/patches, live, on the fly. I use chiefly acoustic sounds and work with a drummer and bass. I use it in musical theater to enhance the overall impact theater music. The Kurz was excellent, except about 75% of the time when it wasn't. I'm in the market for something similar and not prone to crashing. I checked the Yamaha CK series, but I heard they can only play 3 "live sets." I'd like to try the Roland Fantom 08, but here in Portland, OR, dealers are few and far between. I also thought about using Main Stage software and a midi controller, with all the sounds supplied by the Main Stage software. Any thoughts or suggestions would be appreciated. Sorry to ramble. Bo Ayars