Cant say nothing about raids because I've never played one of them. But about dungeons(normal and heroic), here I had the worst pve experience. I've completed just some dungeons, but for most of them there's always some bug that prevents you from completing it.
This is a hassle for those without guild and reached 85 recently. Normal and heroic dungeons are a part of the game and without them, many new players missing a part that allows you to have fun. I dont know if staff takes care about this, someone says no and others yes.
So, the only solution(maybe) is to find another "place" to play this patch maybe with less issues or staying here hoping in some "miracle".