As I've mentioned many times, I love mine.  Great new sound generation source, excellent styles, live sound, wonderful vocal processor/harmonizer, Songbook is great, abundance of real-time controls.
There is a problem with the screen.  Several users have reported, as well as me, that the lock-down mechanism has failed.  It doesn't affect the usability, but is something that should be addressed when it happens.  I have an appointment to take mine to Dallas for them to fix it.
I think I've read of 3 or 4 others that have the problem, so it's probably quite isolated.
It's by far the best arranger I've ever owned.  Not perfect, but I probably won't be in the market for another one in this lifetime!  
