Summary: I have used a friend's Tyros 3 before and was waiting for an opportunity to get the Tyros 4 (Tyros 5 was beyond my budget). I am amazed and pleased at its versatility and quality of sound. It is giving me hours of pleasure and there is no limit to how much more you can do with it. I looked at the PRS-s950 and what I miss (available in Tyros 5 and PRS s950) is the sound stretch feature and pitch changer which you can apply to a WAV file.
Pros: Easy to Use, Realistic Sound, Touch Sensitive Keys, Well Set Out Controls
Summary: I have a PSR-S950 which made me see Tyros 4 and I bought it and 100% satisfied with both keyboards quality, Yamaha is being imitated to be by other major brands, but not getting even close and when they come a little close..."bang" Yamaha brings out something new and Great with unique tegnology.
Pros: Better Than Other Brands, Easy to Use, Portable, Pre-programmed music, Realistic Sound, Responsive / Good Action
Summary: I am an experienced professional who after a long hiatus have rediscovered my talents at the keyboard. This isntrument is beyond amazing and I look forward to many hours of enjoyment by recording my performances and being my own critic! I love the many beginnings and endings, the fade in and fade out and the ease of voice selection. I would suggest better instructions for installing Premium Packs and more memory capacity for recordoing a midi file to edit.
Pros: Easy to Use, Realistic Sound, Responsive / Good Action, Touch Sensitive Keys