So, I am going to paste the link to my thread from the wow forums here:
http://us.battle.net/wow/en/forum/topic/2046966714
My OP:
So, I decided to not run a heroic with my guild and try this luck of the draw buff (why would you want guild runs to be harder? Punish people for running with a guild?)... We get stonecore, group makeup isn't bad... but I end as a tank with top dps (probably due to aoe, but still...).
So, we get to the room with the sentry dudes, that in the past, if they went off, it was probably a wipe... well one went off in our pug, 3-4 extra mob groups pulled... no problem, we killed them all off.
I have only done stonecore so far, but the heroic instance felt like a joke... felt like I had gone back to a wraith instance.
I really hope blizzard, once they look at the new numbers now, at least decides to tone down the luck of the draw, and maybe add some buffs to the heroic dungeons. Cataclysm was a step forward guys, and you just took half a step back.