I've yet to have bad experience in PotD. Course, the only time my group wiped was the first time me and a couple of my friends played it not knowing what mechanics the bosses had, and even then it was only floor 50 boss that we wiped.

For the most part, the groups I have been in haven't had issues with doing the whole dungeon. If you showed interested in actually wanting to kill everything, for the most part, everyone was up for it. If everyone seemed like they wanted to rush, that was exactly what we did. Never have I had someone complain if I wanted to do everything. Then again, I haven't really been in many groups that have been very verbal. I think, I only was in one group where people actually talked. It was 3 female characters, and one male. The male kept calling us his angels, so we started calling him Charlie. lol