I have a tendency to play very high on the key. The 900 is difficult to press the keys down at the top - they seem very tight. Some notes wouldn't play when I played faster.
Besides that, I just need a 76 (min) keyboard. Should've never played a piano for last 2 years - spoiled me.
If and when I play out, I'll grin and bear it. I don't plan on many gigs, although I can stick my usb in and go play very soon (past 800 performances).
Sitting for 6 hours looking down stresses my neck (multiple spine surgeries) and I end up very sore. The tilt will be great along with everything else this monster offers