PA1X. I have play it and spent 7 days at the Keyboard Festival UK. That's enough time to say this is possibly the best arranger available this year.

Regarding price. Like for like option wise its the same price as a Tyros £2600 UK pounds without hard drive. With excellent firm feel 76 keys.
Allot of the Voicing is up to the quality of the Yamaha Mega voices. Trumpet roll off with aftertouch. Trombone bend with aftertough...and these can be easily be played live unlike the Tyros Mega voices.
All you sceptics are going to be blown away....Ha!!!!!

Graham