I have to admit, I enjoy the positivity expressed here. I for one am trying my absolute hardest to enjoy it, but I've queued with nothing but groups who have a hard time with the mechanics. It leaves me frankly exhausted. In my personal opinion, A8 shouldn't take 2+ hours to clear.
Aside from actually running it with people, the mechanics at the core are really well done. I've never had to stay on my toes for a fight so much before. Thumbs up from me, dev team.