What KDR is stating is true in terms of the camera. The first boss fight was kind of frustrating because you sometimes couldn't see where the spector was going to pop out at.
However, the camera isn't that awful. It's leagues better then the Sonic Adventure series camera, and the Warehog stages in Unleashed.
Alot of the boss battles are memorization, kind of like MadWorlds. (considering both were made by the same development team)