I spent hours yesterday clearing A12. It wasn't fun and hopefully will get better when people learn the fight. I quickly watched a vid after the first or second try given the mechanics were far from obvious and the people there didn't explain the fight at all. That wasn't the case with A9, A10 and A11. Those fights went pretty well and people did explain mechanics to new people. I have 3 alts that will need clears and I'll try for clears with my alt Tiffa later today.

I'm not for nerfing it but it's definitely a fight that will potentially turn off a lot of casuals in my view.