Had the Undercover Flex on my 2014 Limited for 5 months bbefore trading it in for a Raptor. Love the flush look of the flex and ability to use my entire bed without panels rubbing on the paint of the cab when fully folded.
However, I went to remove my bed rug and Flex to swap onto the Raptor, I noticed my bed rug was pretty wet, yet it hahadn't rained in awhile. Anyways, installed everything on the Raptor, dropped the tailgate, took a hose and started spraying the top of the Flex. Tons of water started leaking thru the middle fold. I knew that was aproblem, but was told prior to purchase that they fixed the issue. Now there site has a disclaimer that leaks aren't covered. Pretty disappointed. But otherwise, I'm happy with it.