Review (3/5): Works well, but for how long?
I wanted a fairly stiff brush to rid my back of itchy dead skin. This brush is great for that; it is nice and stiff, and I haven't had any trouble with the head coming off unexpectedly (nor have I figured out how to detach it, but I haven't needed to either).
The problem: the bristles aren't attached securely enough. Within two days of my getting the brush, two or three holes' worth of bristles had come out. Now there are four empty holes. I haven't been unduly rough with the brush--in fact, the bristles in one hole came loose, as far as I can tell, when no one was using the brush and it was just hanging from the shower's door handle! So I like the product, but I don't know how long it will last.