So I just got done tanking a Kara badge run for my guild. Me main tanking with another paladin for OT. I didn't need him at all. In fact, unless I let him pull the mob off me, or he taunted and moved away fast, I ended up with everything every pull.
Bosses went down faster than I had ever done them. Sure, the 30% HP nerf to all raid mobs made most of that, but I could tell everyone's DPS had gone up. Especially mine.
http://www.wowarmory.com/character-sheet.xml?r=Gorgonnash&n=ehcks
This guy, right here, had first place DPS through the entire raid, except on bosses. I did take first on Illhoof, because we lacked any other AoE. I had 5% more of the total damage than the next guy. 800 DPS at the end. Some fights got me as high as 1500 DPS. And since most of that was holy with a +90% threat buff, I had TPS's that sat up at over 2400 at times. And not just Curator, I held 2400+ TPS for the entire time Illhoof was at less than 35%.
BoSanct is truly awesome. I simply could not run out of mana in combat without a drain mana spell on me. This was with me in a constant battle with the GCD. Against an undead or demon at below 35%, there is ALWAYS a threat-producing move off CD. I even had the +2 seconds consecrate glyph. I was always mashing something. And still never running out of mana.
A few people had not known to download the new Omen, and just decided to test the in-game threat meter. It took someone pulling a mob I didn't even see was in range for anyone to get a threat warning from it. Threat production was that huge.
I did find a few problem, though. Hammer of Justice does NOT currently interrupt casting on mobs immune to stuns. The Exorcism glyph made up for that, but it's still annoying that I took 3/3 Imp HoJ for something that didn't work. Also, Chess bugged. Half the raid didn't get their piece bar, and then when a piece died, the controller kept the buff for controlling a piece and couldn't more until they dispelled it. Chess ended with three pieces.. me as the king and someone as a healer, vs. Medhiv as his king.