After getting 70 on my redmage last week, my guildies dragged me into it. I had ilvl 310 on average. Took a few pick ups for a learning run and got it down on the third and half attempt (third attempt had a weird bug that we still can't quite explain. Everyone dropped dead about 10 seconds into the fight). I think the tanks, one healer, and a DPS were 330+, the rest were 310-320.

Tricky part is the DPS staying alive long enough to get enough damage before enrage. One of the issues I had is the server handles movement when floor is iced, so there's a slight delay before the server processes the move. On the screen it will look perfect, but you die midslide despite being out of the telegraph even before it shows. So I had to pre-empt movements while iced and remember NOT to do it when its not iced. Jumped the gun twice and got blown up by moving in too early.

I think server processing movement in FFXIV has been the bane of many for the last 3 years. At least its predictable.