Great cover
I have had the Bakflip MX4 for about 5 months. Fairly easy install if you take the time to read the directions. I live near Park City, so the cover saw a lot of snow in its first winter of use and held up well. I don't see any wear on the seals from where you fold it up. A minimal amount of water will work it's way in with a driving rain, but I never expected it to be 100% water-proof. Would buy again.