Despite other people's opinions, I find most fenders to be roughly equal in quality. They all work approximately equally well, except that longer is better. Also, if you have a choice of widths, get the widest that will fit.

I don't have to mess with my lightweight fenders often. Occasionally, they'll go a bit out of alignment. The struts are made of steel, so I just bend the right one with my hand. No big deal. I have no problems with rattles.