I'm relatively new to the game myself, but the only thing I've really seen as an issue with the game so far is that the PvP matchmatching seems a bit unbalanced in terms of matching players of similar skill/rank. When choosing a game type in the Crucible, in all the listings it says 'Level Advantages Disabled' so I would assume this should mean that I get put against people who are more or less along my level, thus along my level of gear, however perhaps I'm just misunderstanding what it means? Anyways, I can't really join this and enjoy it because I'm obviously at a disadvantage with lower quality gear and what not. Now of course, some will say things like "get better gear then noob" or "just play smarter/better scrub" but the Crucible is opened for use pretty early in the game for each character, so I would assume a more balanced matchmaking system would make PvP a more viable mechanic for just about everyone at anytime. I remember the first time I tried PvP I just opened the Crucible, curious to try it, and joined as a level 6 where I went up against an entire team of level 32s. It just seems to me that PvP is unplayable until you're a certain level, thus making it a less than appealing feature for a while. Aside from this inconvenience, I've got pretty much nothing ill to say against the game, great work Bungie.