my main issue with crumpler bags is just their shape and materials.. I find them way to stiff, and a lot of them are really weirdly shaped. I mean, you might try one on and love it, but I didn't personally. They do seem to be constructed fairly well though.

I actually have one of their camera/laptop backpacks, and I like it a lot for off-bike use. I can fit my laptop and camera gear in there, along with a snack or an extra layer or a book in the main compartment.

But the shoulder bags have never really impressed me that much.