Overall, a nice product and I would buy again. As for the question / rating about water resistance - I can't speak to that as of yet, since it is a new install and hasn't been water tested. As for the rest - the installation is fairly simple and the cover is strong and robust. Some things to watch:* Make sure to use the shims if the rails sit at a slight angle, due to some curvature of the bed rails - if they sit at a slight angle, you may have issues with the seal properly contacting the tailgate. There is a supplemental sheet that includes shims and tells you how to use them. Your truck may or may not need them.* They say to install the bulkhead seal as one of the first steps. The install instructions don't clearly specify if the seal should be at the front, rear, or centered on the bulkhead (although the video does say to place it on the edge closes to the rear). I would wait and do this at a later step - for my truck, the bulkhead seal needed to be just a little bit away from the rear edge - meaning I had to remove it and reinstall it (this impacts the adhesive quality!). Its best to fit the cover first, then determine the exact location of the seal. Once the cover is properly fitted and in place, it will be very obvious where the seal needs to be - then you can easily lift off the cover (before securing it) and add the seal. Not having the seal does impact the general install and fitment of the cover - you just need to add the seal before bolting the cover down at the front.* Keep in mind - you don't need the bulkhead seal if you have a drop in bed liner that covers the bulkhead. If the bulkhead surface is painted metal - you need the seal.* While installing the rails, start at the middle (place the first clamp in the middle). I used a vice-grips to initially hold the rail in place - I didn't have a helper and this made it easy for me to keep the rail in place before installing the first clamp.* On the rear panel, I had an issue that required me to remove the latches on both sides of the cover / rear panel, reposition, and reinstall with the sheet metal screws (I used my screw gun for this - but be careful not to strip and over-tighten). The latches were installed with some adjustment capability, but not enough. The latches were sticking out too far and hitting the rails! At first I thought that my rails weren't all the way in - I confirmed this wasn't the issue. A look at the latches on the rear panel compared to the latches on the center latching panel clearly depicted my issue - the latches on the center panel (exact same type of latches) were further in, allowing clearance from the rail. The latches on the rear panel were clearly misadjusted and sticking out too far towards the rails. Again, I didn't have enough adjustment on the latches to compensate. This was fairly simple to do - took an extra 5 or 10 minutes (after figuring out the issue). But this shouldn't have been necessary. If yours sticks - check the rails before moving any latches. You want to make sure the rails are properly seated - otherwise they can interfere with the panels.Overall, nice product and nice look! Hopefully it does a good job repelling water - I have heard feedback both ways. I didn't want to rate that particular function as I haven't tested it. Overall, it took less than an hour to install - even with the minor latch issue. I installed myself without a helper.
