Well I haven't gotten to try the gameplay yet but I've gotta mention, the music I'm listening to as the game installs is well done and beautiful, emotional & interesting.
Not surprising since I really liked the compositions in the various D1 parts. It's definitely one thing bungie has done well on all the Destiny parts so far. (IMO)
Cello and nice bassy/boomy drums... always a nice sound imo.
(I suspect I'm going to hear a lot of it since the beta game download is pretty slow right now... I'm only at 14%... probably another 86 minutes to listen. Oh well. So far so good. ;-)