I purchased this 5 years ago, after about 3 years I noticed the rings riveted on the exterior showing rust. Not too big a deal since I live in Florida that's to be expected. But then the knobs for the support rod bracket began slipping, so they don't actually turn the nuts anymore. Speaking about the support rods. when the cover is in place they are supposed to rest on a plastic wire clamp, these are designed to hold a small cable not a rod, so more often than not the rod falls out. Also the locking mechanism is merely a cable stretched between two nylon wedge shaped pieces. This assembly is riveted to the underside of the cover. Shortly after the 3 year warranty period the forward locking bar started to pull out of the rivet hole in the cover. Today I found the entire bar laying in the bed of the truck. Would I recommend this? No not for this price. I would have expected it to last a lot longer. Very disappointed.