Meh...played it a bit but quickly lost interest. No substance to the story, loot is largely inconsequential, and the only way to make your character look different (one of the cornerstones of dungeon-crawler genre games) is to pay for it.
Why would I play it when the best diablo clone in existence is Dungeon Siege Legends of Aranna.
I beg to differ - it's Torchlight II