Finding it a bit hard to separate this and the base game in my mind, mainly because this largely plays and feels like the extended endgame that the base game kind of just didn't have. You basically get thrown back in with all the tools that you spend the base game getting, and get to use them for a few hours (with a couple of extra enemy mechanics to spice it up). It's fun.

I saw some people had some issues with the Spirit enemies, and I think they might be slightly disruptive to the combat loop but most of the time they work just fine, it's another High Value Target that you need to pay attention to. They're used moderately poorly at the end, because the arena that you're in just kind of has you fighting them with almost no other monsters to engage in the rest of the combat loop with, and it shows how much the game is built on that chaotic loop. It really needs there to be a lot of monsters trying to fuck you up, or it starts to feel weird.

This is also the point where the lore goes from really annoyingly bad to enlightened funny self-parody.