I listened to it, and of course it sounds good. For the few styles that he played that I might use, I can't tell that it sounds better than other current arrangers though. Screen looks nice. I have heard the country styles are really good and the one or two I heard somewhere did sound great. Not great enough to make me want to change though.
Yamaha big band stuff has always been great, as has the horns, brass and guitars. I don't have an opinion on how good the EDM stuff is, because I'm afraid I don't even know what it's supposed to sound like.
I'm sure older Yamaha players will be pleased because it will surely be an upgrade from the Tyros/PSRs.