I just installed my new Access Tonnosport cover on my new 2014 Silverado. It took me about 30 mins. Was very easy with my trusty Irwin Quick Clamps! It's nice and tight, latches very securely, and seems to be waterproof for the most part. Very high quality construction, and very low profile. Now my new sprayed-in bedliner won't fade and rot in the Florida sun!
Their top-of-the-line "Limited" cover is well over $500. THE TONNOSPORT IS VERY SIMILAR TO THE ACCESS "LIMITED" COVER, BUT 1/2 THE PRICE! I got it for $242 on Amazon with free shipping! Love it!