Seemed ok for us for the most part. Some emotes didn't fire at times so we had some random charms but otherwise wasn't bad.
Unless they've stealth fixed it, this raid has the potential to crash when it hits 25%. Only happened once to us, but it's happened to others as well.
There is definitely a crash possibility when Brantun spawns. Not sure what happens but it did crash on us once, about 15-20 sec after he spawned.