Jerry....
All kidding aside, S900... it is definitly an improvement compared to the Psr3000. & Not because of the SA sounds of which are nice to be added to the pallette if you really knpow how to UTILIZE them CORRECTLY while playing. Although a cute novelty I dont think the Sax Breath or the Guitar Knock are practical in the real performing world, yet some other could be very useful again ONLY IF MASTERED while playing them. I'll know more if & when I can try it on stage where I'm able to EQ & tweak the sound to my satisfaction. Navagation is #1 for me and the RE-addition of the Voc/ Harmony.... Harmony/Echo.....Reg +/- etc is a good thing.