As a tank I will say that its pretty crappy. Medium armors should not allow me to roll need on. And I pass if there is a LNC in the group. Actually, I run with a ARC/SUM and Me, so we usually try not to hose over the other random DPS we get. But man... I am about to stop inviting LNC'ers in our group. The general community of them is noticeably rude and challenging to play with. I have had 3 tell me that they were going to tank the run, and try with all their might to not follow the marks and pull agro just to tank "something". I'm to the point of letting them get the mob and then our healer lets em die.