It took me about an hour last night to do Mayhem in the Marker with my Monk Took the henchies in the end since all the other chars there were lower level than me (18). I was seriously on the verge of axing my monk when I couldn't get past all the afflicted!
Made it past them in the end, got to the last res shrine, 60DP and then just killed off 1 enemy at a time until I could run through.
Did the missions and felt a whole lot better about my monk again
My only problem though is that it seems to take forever to cast healing spells. Battled a few times to keep people alive I am going to need some good healing spells though...