Can't speak for the other comments, but my black Switcheasy Capsule Rebel, and the Trim that my sister has, have been more than satisfactory. My CR got me through my hedonistic social life during my senior year at a major party school, and I only just replaced it about a year to the day that I got it. Not because it broke, but because I wanted a change. My sister likes her blue Trim. It did become discolored (greenish from oils and pocket lint, it seems). My other sister also got a purple CR that is still alive and well. My CR survived numerous drops on concrete and asphalt, and has even protected my phone from numerous spilt drinks. Of course it has several scars on the surface around the corners, but that is to be expected with any plastic case hitting concrete with force. Furthermore, you don't have to worry about flabby silicone like on an Otterbox Commuter. The soft plastic is much stiffer and holds its shape better.
The hybrid designs such as the Odyssey, Eclipse, and CRs are not meant to be taken on and off. It will damage them over time. The Trim stands up much better to such treatment. If you were to somehow break the case, I've only heard good things about their customer support. They would likely send a replacement.