Fits really like a glove and although it is very thin, it protects the camera lens just as on flat surfaces. Down and you catch something more angular locations on the shell, but they are, at least for me, not disturbing.
Some users have complained that easily collects dust. Yes, this could really be true. So what, I wonder since. Then you look at it from short and makes it clean ... Anyway, with me after two days still is no dust observable. :)