I finally played the Keystation 88 Pro at Sam Ash last weekend. I didn't like the action at first, it was little on the bouncy side, but, as I played it, it grew on me. Also, it's likely that that might settle down with use. I'm sure the one I played was pretty new. I trust my sales guy there and he liked it a lot.
Now, of course, it doesn't have any sounds, you know that, right? It's strictly a controller.
EM gave it a KeyBuy award this month and said it should sell like the Yamaha KX88 from 20 years ago (arguably the best piano action controller of all time).
It sure has a ton of controls on it and they feel great! The only negative, and it's kind of a major one for me, is that it doesn't send aftertouch from the keyboard. At least not as far as I can tell.
Ted