I loved Torchlight I. It's my favorite ARPG hands down, but I never could get into Torchlight II. The view, the interface, the gameplay, and the classes were all jarring coming from Torchlight I. Same for a friend of mine as well. We were so disappointed.
I'd have to agree with RollinThundr that Path of Exile is the place to be currently, although I'm one of the few that thinks Marvel Heroes is not all that bad.
Maybe you should take my post with a grain of salt if you're a Marvel Heroes hater.