I've had the Fold-a-Cover on my truck for 3 months now and love it. Yes, not the cheapest option, but I love the flexibility of being able to open the front and back panels. I hated when things would slide forward on my Avalanche, making me crawl into the bed to retrieve. My kids would get a laugh watching me .
I went all in with the cover and undercover storage box, which set me back $1,500.
The only leaks I've had so far are from the factory holes in the bed, Need to get some rubber stoppers or something to fill them.