Surprisingly good. But that's probably because we haven't seen a plot twist that matters, good background music and good shounen writing for a century in this anime. And ONCE AGAIN no useless crap talk WITHOUT action in the next 30 seconds. And if someone talks longer, it does actually have a logical purpose. Aizen talked shit and got grabbed in the face. SERVES HIM RIGHT is what I thought. Usually in Bleach, people are just being annoying without making much sense. But in Aizen's case it's understandable. I mean, he took such a long time coming up with all that crap, always having the upper hand and now when he thinks he's all powerful he gets smacked like a dog. Combined with his usual arrogance he needs some time to comprehend he's not the only big deal out there right now.
Oh and butterfly Aizen does still look insanely silly. He's like a parody of himself.