There's a part, i think it's when you first go up in the tower, i remember the camera is fixed in a way that you cannot see the surface of the plataforms, and in a way, you just have to guess your jumps and hope that you can land there without falling. The rest of the tower dungeons do have free camera, i'm trying to find some youtube video of that specific part but can't find it so far.
There is a part where you're going through a city that's turned onto it's side during the Babel Tower run. Other than that you can spin the camera around just like you can for most of the game.
As for the sewers I didn't have too much trouble or find it that annoying. But then its not like I was running through them just so that I can look for a key to get to the other end of the sewers to have a meaningless conversation with some self important bum just so that I could pass the time like some ADD laden kid.