I hit 90 yesterday on my Monk and immediately delved into a MoP heroic. I was a little scared going in, never having been to that particular dungeon before and in full quest greens.
Not knowing the mechanics I just went for it and managed to down every boss. I had no clue what to expect. In the end I died once in a trash pull mishap, but we didn't wipe once.
I've done several more heroics since then with zero wipes.
Again, I just winged it, didn't know mechanics for any of the bosses.
So I'm thinking, either I'm a completely bad ass tank or the heroics are tuned ridiculously easy. I remember wiping repeatedly on Cata heroics upon going in and having to pay much more attention to the mechanics.
What's going on with MoP heroics?