For me the live acoustic drums are very good, maybe even comparable to the better kits I have with my DR8 soft drum synth. But... I'm guessong you wouldn't be very impressed with any of the electronic kits. I think that they are a step up from the older PSR series, but unless you're looking for "classic" hip hop and techno type kits ( classic = dated for me btw ), not much happening here.
I'll try to record a few for you and I'll do a yousendit post.