I have been playing Avatar for about a year and really enjoy it. I am not a hard core slash and burn player so it is the social aspects of Avatar that really appeal to me.
I like the fact that the players take the time to help each other. (Grouping is not only encouraged but in some cases is the only way to advance) It can be frustrating trying to get a group if your character is not a tank/leader. Players personalities and styles vary. Therefore some find it easier to get a group than others.
There is a great deal of bantering on the chat channels. Imms have different personaliites just like other players and it is pretty easy to know who to tease and who to defer to.
The world of Avatar is a great place to belong.