Here's a link to my thoughts on the Pa3x after a demo 2 weeks ago.
My visit to Audioworks demo Pa3x

I took delivery of the Pa3x this past Wednesday. 2 years ago I had both the Pa800, then the Pa2xPro and pretty much have preferred Yamaha arrangers. After playing it the first day I thought what was I thinking? Unlike the demo in the store, nothing felt right and I thought this could have been a mistake.

WRONG after 3 days and quite a few hours everyday , I'm really enjoying the Pa3x. I'm digging in and have started the tweaking process. The operating system and how it works is starting to come back slowy and in the process reading some posts here from Bruno123 and help from Rikkibears is bringing it back.