Completed Act 2, holy fuck if D4 boss fights get worse than that it could be a breaking point for me. I get the idea of making the boss fights more than a DPS race that's measured in seconds for the majority of the game, but that three stage 5-10 minute grind fest was abysmal. I beat it on my second try, but it wasn't a rewarding challenge and I wasn't trying a third time that night. I will probably be turning the difficulty down if future fights are like that.
It's like a Survivor style boss fight, only one out of four attacks have the hazard area warning so you can play the dodge game, it's hardest hitting pounce attack happens too quick at least for my old ass to react to, so I just have to keep out of its range constantly, and the tight confined arena makes all of these aspects worse, I loss 3 potions at once point because the boss model literally trapped me in a corner and I had to wait for my dodge cool down to reset to move past it.
My gear definitely was behind, I think I had a level 20 bow at level 30. I'm playing a class that works traditionally scale with weapon damage, so I'm not that upset, but I've seen enough of the system to know that Sorc and Necro are going to be the same, D3's all skill damage is tied to weapon damage system is what I hated the most about that game, and combined with D4's every areas scales with your level only magnifies that problem.
I'm not turned off, just an unpleasant experience that I at least currently think I can adjust too, but it's another thing I can see getting worse and not better.