I ran UT a few times last night @ lvl 70 with a pug healer.

Output on the Frosties was ~1400 DPS
Output on blood tank was ~1050 DPS

AOE is strong in the group.

Mostly none of the healers needed any mana breaks and we were able to go from one mob to another almost seamlessly.

It might be, because it's 'new' but I'm having more fun with my dks than shaman.