I really like the quality of these shelves. The only thing that bothers me is the attachment to the windshield. It is almost impossible to tighten this screw. They give you a split hex key that doesn't really change much. I think a small hole to access the bolt over the edge would be a much better option. This was very quick, fits very well, except for the two screws that took me 20 minutes to tighten. The fit and finish was near perfect, even supplying us with corner shims to better match theβ¦