Pros: I'm really digging the flesh and metal ambience, like I'm exploring an endless machine with its own logic in its madness. Some of the gimmick fights, like the 2 with the ring of shadows, are nice and memorable. The power up placement allow a good versatility on when or where you want to use them (at less if you're fast enough)
Cons: Some fights, like the one with a bazillion death knights, feel a bit uninspired and just a mindless spam of enemies for the sake of having a lot of enemies. The 50 switch hunt is a bit unsatisfying, especially with that BIG number being bloated with some switches feeling like they were placed randomly. The reward for the hunt is a bit "meh" for the trouble it take to get here, because it's generally more of the same thing and you just end it like any other level. There's no big set piece at the end, like with Tears of the False God from AD, with instead everything being put in the entrance of the area for some reason. Finally, there's the toxic water trap... That's all I'm gonna say about that.......
Dunno if the new enemies are a pros or cons. They are not necessarily useless, but they feel a bit unmemorable, especially the ones lacking a new model. Overall, pretty solid and I recommend it for players seeking challenges!