Kawai did an outstanding job of making this digital piano look especially attractive and obviously went to great expense to do so. Next, Kawai put in their new ivory feel "Real Hammer" key action with let-off/escapement that allows for fairly authentic touch response and control which feels closer to a grand piano across the entire keyboard. The pedaling functions are very good with realistic feel allowing for graduated levels of sustain. As far as piano tone goes, it is quite nice and competes with the entry level Roland HP series & Yamaha CLP400 series of cabinet digital pianos.
The CS3 also has a basic digital recorder/player on board for being able to quickly listen to your recorded performance and store them, a metronome for timing, a transpose function for electronically moving the key up or down for singing & playing purposes, as well as the capability to layer two instrument tones together in a dual mode that has relative adjustable volume balance control. It has a duet mode so two people can play four hands at one time on the keyboard which is very cool (great for student-teacher simultaneous play or duets in general), and the CS3 even has a built-in lesson program from the Alfred lesson course which is helpful if you don't play well. Also, the CS3 has MIDI connectors (no high speed USB computer/iPad connection unfortunately) for connectivity to computers, etc. At this price range it really should have the high speed USB connectivity to interface with an iPad/tablet to take advantage of the fantastic music education apps available now. As far as the built-in audio system goes, it's OK with 4 speakers and 40 watts total of stereo power, but the sound is a bit on the muddy/mid rangy side and I would have preferred to see this model have a better, bigger speaker system considering its cost and size of cabinet. And as I said before, the lower amount of polyphony is somewhat of a deficiency as compared to the newer models these days. However, the bottom line is if you think this new model sounds like something you'd like to own (especially for the cabinet) and would fit your musical needs, I do recommend it overall and it's definitely worth your consideration.