Last night, broke him out of jail. One of the goblins threw grease on the floor in the prison. Big ol bear was too afraid to cross over and help with the rest of the mobs. Hell...he could have taken the stairs around. Nope just waited for my party to do the heavy lifting.
Next, I asked him to join us in the fight with the rest of the goblins. He maybe had 1-2 good hits but was mostly useless.
Once combat ended after we got the 2 big ones down, he peaces out without helping finish the rest of them.
If it weren't for advancing the story in act 2, I'd leave his ass in there. (I know it is not mandatory, but I like the XP).