It's an interesting fight for us because damage is almost never done this way, it's nearly constant with no breaks or specific moments to plan for. At a certain point it's like a bahamut's claw that never ends until either you or the enemy is dead.Honestly Faust seems to be shittier for the tanks and healers. The DPS check is realish but not what's caused issues; tank drops and it goes to hell.
Of course in a month or two people will be joking about how easy it is (Oppressor too). I haven't seen anything of AS3 (and obviously 4) yet but it seems like 1/2 at least are following the FCOB design plan which I am pretty happy about.