Wow. Bought this today. I haven't really had a chance to study it, but I did listen to it through once -- and was pretty much blown away. This is good stuff. I've only listened to the 5.1 disc, and absolutely loved it. These songs sound better than I've ever heard them. I was a little leery of the tweaking/mash-ups/additions/editing that they did to the songs, but for the most part I found it was handled very well and respectfully. I would expect nothing less from George Martin and his son.
First impression: brilliant. It gave me goose bumps.