The cover unit arrived without the mounting hardware. I called ReTrax, and they had the hardware to me in three days. I previously had a hard fiberglass cover unit on my last truck but wanted the flexibility to haul tall items without removing the cap, so I bought the ReTrax. It's crucial to read the instructions thoroughly and take your time during setup process. Having another person to help set it on the bed is recommended. Alignment was straightforward, with no surprises. The cover unit opens and closes perfectly. There were only two leak points, both at the rear left and right corners, about the size of your hand, which isn't good. I expect it'll reduce after the cover unit settles. The lock works well, but it only comes with one key, which was unexpected for the price. I ordered two others from ReTrax, and they sent them at no charge. The water drain tube connectors are thin plastic and look cheap. Be cautious when inserting them into the holes at the bottom of the scroll box. Slowly and carefully twist them in until they click. We'll see how they hold up over time. Fortunately, RAM had holes in the bed that fit the drains perfectly. Overall, I'm happy with the look and fit. We'll see if the leaks stop over time. It's a fantastic design and made in the USA. So far, so good I'm pleased with the results.