the game isn't super MMOish, but it kind of conveys the feeling to me. if you are familiar with avoiding aggro in MMO's, you already have a skill that (judging by some forums) many people don't have. fighting is either skill-based (melee) or environmental (magic). story is there, but not the focus at all. what's there is pretty cool though, and they don't (so far) go out of their way to overexplain everything. the zones are pretty diverse, and there is a good sense of overall cohesion.
broken record, but the whole game just kind of feels old school, which is awesome.
I think the biggest worry I had about the game going in was that it was going to be stupidly difficult and that I'd just burn out on it or give up. doesn't seem to be the case so far, although I've been relying on magic too much. mobs that are easier to melee are starting to give me problems.