Finally did this last night. Bailed on the first group since they decided not to send anyone to the assembly line because "yolo dude". I refuse to run with illiterate idiots.
Requeued, got in after a wipe on Klaxxi. Someone got assist, marked the kill target with skull and we one shot it. Long, boring, but not hard.
Garrosh - 2 wipes, lots of people who'd not seen the fight. Once again, someone explained what to do (kill engineer near raid marker, etc), marked the kill targets and we killed it the 3rd try. Fun fight, but felt easier than Shamans and not as hard as Lei Shen was initially. I personally wanted to move from Garrosh to Thrall who's an ass ("Hi, I talked, got my ass kicked by Garrosh, then decided to act all tough after you guys actually defeated him"). One of these days we need to kill Thrall.