I did a Founder's Falls mayhem mission with my 40 ss/stone brute last night and it was by far the most fun I have had in a long time. I did all the side missions and destroyed nearly everything in site.
The only problem I had was with Silent Blade not staying close and constanly attacking the civilians. When I finally got to the bank she go lost when I went in the door. So I went back out to get her and zoned back in. She still didn't come in so I tried to go back out and the door froze. I couldn't move or attack or anything else. So I restarted my computer. Once I was logged back in the the timer was still running ( 6 minutes left) but the mission appeared to have reset. I was able to go back and destroy everything again and take out the DE that were around to get the side missions again. I didn't want to waste another 45 minutes going through the missions again so I only took out a few things to give me some extra time. By the time I got to the bank again I had around 10 minutes or so. I get to the loot and have less than a minute left. I collect the loot and who else comes to stop me but that Mr. Do Good himself Statesman. Just as he gets to me I look at the timer and there is only 5 seconds left.
All in all this was extremely fun and I can't wait until this hits live.