I currently use a PSR-3000, have been on it for several years now. Recently I got my hands on an S700 just to try it out for a bit (of course it would not be a candidate to replace the 3000). Anyway, I copied the styles onto my 3000 and went through them. Many of them are, not surprisingly, exact or near copies of styles on the 3000. What is interesting to me though is that the OTS presets are different between the two keyboards - and the S700 presets almost always sound better, even on the 3000! It seems like Yamaha spent extra time getting better presets for these styles. They have some great keyboard layers, amazing guitar, and great brass. Also, to my ears the OTS presets from the S700 seem to have a touch more reverb, which sounds better to me.