I just did it for the first time last night. I died a ton. But the group itself never wiped once. The fights have a lot of very annoying mechanics that feel really nuts to try and do perfectly(for now), but at the same time the penalties for screwing up seem mostly individual-based and very forgiving. My deaths and screw-ups didn't seem to affect the rest of the raid's well-being at all. You can make tons of mistakes and the alliance as a whole still just keeps on chugging through the fight. Notorious raids like Weeping City and Orbonne were "difficult" only in the sense that there were certain mechanics that needed done just right or the entire raid just flat out wiped right there. I never saw anything here that was like that. And quite frankly, I don't mind that at all.