I bought Destiny several days ago and started playing it last night.
Having built a game I have a whole new appreciation for just how much work went into making this thing. Cloth, detailed characters, gigantic maps, rpg style leveling, multi-player. There is a lot of stuff in this game. Of course, for half a billion dollars it better be good.
I chose to play an awoken hunter who specializes in precision distance shots.
I like the vibe of the game. It feels like an MMO Mass Effect RPG.
The map where you select missions looks a lot like the animated cartesian map from the animated Sinbad movie:
Sinbad's book of peace
I'm not sure how much time I will have to play it in the evenings but it will definitely become my morning treadmill workout game.
UPDATE - 09/30/2014
I've been exclusively playing Destiny since it came out. Hit a wall at 27. I've been there for about a week. I need an extremely rare material called Ascendant Shards to level up. I have 3 exotic weapons and are working on a bounty to get a 4th.