Had to stop in here and say: loving the fuck outta the game (level 24 warlock here), but Bungie really needs to take the complaints of the reviews seriously, and use them holistically to iron out the experience. This needs to start first with the social aspect -- making it easier for people to make friends in the game so those people can adventure together, and then they need to pay a lot of attention to the "adventuring" part. Destiny is a well-made game, but it shouldn't just be addictive for someone like me (a loot hound who is willing to replay stuff over and over) it should be just as fun for other people -- and clearly, it's not.
Introducing randomized dungeons would be a start, even if they aren't well-designed pieces of content, per se. Obviously, the strikes need to keep coming, and it's not enough to give people bare bones customization options for tweaking the experience (medium/hard difficulties).
Doing this grind to get my character raid-worthy when the time comes... it's difficult. It's fun, but only if you can deal with seeing a lot of the same dungeons, same encounters, over and over. Yes, that is what happens in MMOs, but this is not exactly an MMO (anybody actually think it is. I mean, really?) and to boot it's DNA is like 80% shooter, and so the bread and butter of the game is actually *not* the loot, but the encounters themselves. So those encounters need to be a bit more interesting than they are.
Realistically, right now, it's a 7.5/10 game. I love it and am playing it like it's a 9/10 game, but I'm doing a lot of the investment AS IF it will become that true 9/10 or 10/10 experience. If it never reaches that, then this will be, ultimately, a hell of an interesting experiment if nothing else.
