I didn't have the highest expectations for it (as the last 2 BioWare RPG's I liked were both based on D&D and, as a result, were very deep as far as character creation and development go), but it's panning out to be a VERY well done game, in my eyes.
I'm a little bummed that the first patch for it decreases the difficulty on normal mode (which is what I have it set to, for now), and that there are only 3 base classes to start with, but the game still feels as though there is more depth to it than I gave it credit for. Looking forward to seeing just how different characters can become as the specialization classes become available to me.
I don't get the "MMO aspect" reference, sorry. The game feels more like NWN2 than it does like WoW or any other MMORPG. The only difference is that the timing of skill/ability usage is based on cool-downs instead of D&D's typical system of six-second rounds and 60-second turns (at least, I think that's what D&D does). Much like NWN and NWN2, you get separate points for class-specific feats and more universal skills. It even lets you take direct control over your other party members like NWN2 did (and allows you to assign some pretty intricate schemas for them when you're not controlling them directly).
Definitely worth picking up, from what I've seen. I'll try to remember to post more when I actually progress significantly in the game.