First off, these glasses are just awesome. The lenses are totally reflective, massive and perfect for that "Tom Cruise" look. The case is rigid and protective, and could survive a multitude of bumps, drops and scrapes while keeping the glasses safe.
However, when I took them out of the case for the first time, my bubble of glee was deflated slightly by the fact that one of the pads (for the bridge of your nose) had completely fallen off. After a few weeks, one of the lenses seems determinded to pop out. As you can click it back into place, and the pads can be re-glued, neither of these issues is really very significant, but still.
When you factor in the price however...these are the best cheap mirrored aviators out there. A must buy if you're on a tight budget.