The cover is doing well. I can't believe how much I'm in the bed of my truck. The cover is easy to use (very functional) and flips up out of the way as the name implies. The only issue is that there is a small drip in one certain area (the double joint) during heavy rain. With the way the truck is designed, you have air circulating through the bed from the drain points in the bed and around the tailgate so water evaporates and there is no hint of moisture build up in the bed or the underside of the cover. I would liked for my F1 rails to have drains on both ends of the rails. Is any cover perfect? No, but I'm happy with it for now.