I went to strat for the first time last weekend. But I'm only just 58. It didn't go too well. It seems like right now every 50+ instance has major bugs that I've been in. Maraudon landslide has the can't move bug, which requires you to click log out and then cancel, which you can't do during combat. Sunken temple has the bug where occasionally the last blood keeper of hakkar doesn't spawn so you can't complete it.
In Strat the bug was really the worst of all. The baroness possesses your characters. When you wait long enough or get the player down to 30% health, she leaves their body. However, in this case they would die every time. After we wiped, we did it again with no trouble...
Anyway strat definitely looks really cool. We did the undead side which I believe this is as well...