I just purchased the yc61 and have fallen in love. I own a Hammond sk1, Yamaha Modx, Mojo61, and Tyros. I have previously owned Korg, and Nord. I agree that Yamaha has always had trouble reproducing the B3 and rotary speaker simulations. That is, up until now. I am still trying to tweak the rotary settings but this thing is a little monster. Playing in two Blues bands I find that this keyboard has all the sounds and settings that I find necessary for playing live. Yes I would love to see a 72 or 76 note keyboard but other than that I just love this thing.