I purchased a used 2015 F-150 with a peragon cover on it. The cover did not operate smoothly and I was about to throw it in the trash. My wife noticed the price online and how pleased owners seemed to be with them. I then gave their customer service a call and spoke with Jason. I explained my issues and he knew exactly what the problem was. He had me adjust the rails and ramps and after 5 minutes the cover was operating smoothly. Outstanding!