My guild defeated Heroic Kil'jaeden last night. Our first attempt of the night was a 9% wipe, and then we were all over the map for a bit. But we did have another 4% wipe a few attempts before we got the kill.
We did end up wiping more on Fallen Avatar, but I think that fight just hits all our weaknesses more.
For Kil'jaeden, the fight overall is pretty good. It has a lot of mechanics, though, and you have to wonder if all those mechanics were really necessary. Perhaps it would have been a better fight if the dark phase had been skipped, but the last phase lasted longer. We never really had trouble with the dark phase. We either died in the phase before or after.
Not much more to say about the fight. Healing it is pretty normal. Deaths come from doing mechanics improperly, and failing mechanics usually ends in a total wipe. We did have several attempts with tank deaths to Felclaws. But I think those were more due to the tanks letting active mitigation drop at the wrong time.
Oh well, our goal of beating the raid before the next one comes out has been met. I'm looking forward to a couple of weeks of regular farming. (Well, let's hope the second kill goes smoothly!)