Managed to clear all of it through solo queuing for the Duty Finder. First floor was, surprisingly enough, the most difficult one. If missiles weren't being manhandled, we ended up hitting the enrage timer. And that was with me adding a chunk of DPS.

Second floor was a oneshot, the third and fourth took 2 wipes or so and then we killed it. Feels like we did the second floor improperly though, considering that the Magitek mounts deactivated at the second wave already. >_<

I'd compare it to something like the nerfed edition of Second Coil Turn 6 and 7; you're essentially only wiping if you keep messing up important mechanics like thrice in a row.