As a Tank, I always appreciate my healer! Without heals, I'm the first one to die.
I'm not sure if I miss in-game DPS meters yet or not. In WoW, it's common for people to blast out meters after every boss kill and shame DPS on the low end. Sometimes it even happens with healing as well (HPS). I do miss the feedback. That data is extremely useful in adjusting rotations, but I don't miss the added drama at all.
