I like the game so far. Played maybe 5 hours or so just a level 10 though. Seems like leveling takes a lot longer this time which is pretty nice. Just played 3 way co-op the entire time as an assassin will put together the commando for my solo guy and will probably play some solo when I get home.
It's a very fun game, just takes some time to figure out where to go. I will say we played a little 4 person co-op on Monday for a few hours and it was kinda boring because we knew EXACTLY where to go. We were doing the few quests before Mad Mel and just knew exactly what to do, so it was kinda boring, but we had also played through the game 5 or 6 times each.
Still I enjoy the assassin, but can't wait til I can actually do things with him later on.