Got a Tonnopro Hardfold
Needed to be able to lock up gear on trips.
Still need access to the whole bed for hauling big stuff.
Liked the look of the flush fit Bak types, and was also considering the Roll-X, but when I got to see one installed on a truck, decided the little tabs on the end of the rails would get broken off first time hauling stuff.
A close look at the rails and such on the Bak, Flex, and Undercover, and decided to go with either the Extang Solidfold or Tonnopro Hardfold. Price and appearance made the decision - $350 less (to be applied to a Tuner or headers), and the smooth top. The Solidfold I could probably walk on, I do *not* walk on the Tonnopro (but my kids do).
Opens easily (have to undo 2 clamps, not just a single cable pull like the Bak types), folds and clips open for access to 2/3 of the bed, and can drive with it open. Spin off the front clamps and take the whole thing off for access to the whole bed - easy for one person, only weighs about 60 pounds, takes a couple minutes.
Seals well - did not put the tailgate gasket on the when I first got it, and got a lot of dust coming in around the tailgate. Added the gasket and almost no dust. It has been in heavy rain and hail - no water gets in at all.
Have had it on about 6 weeks. Multiple trips over the mountains (Colorado and Utah), and 4-wheeling in Moab. Pulled it off to haul stuff - just strapped it beside the stuff. So far it's great. I use a cargo net underneath on camping trips - don't want anything denting it from underneath when off-road.
Vinyl top has a 10 year warranty. Came with a bottle of vinyl protectant spray, which I use after I wash it (several times already - mud...). When that runs out, will use 303 on it.
Came with a battery operated, stick on LED light - but it won't stick to the rhinoliner.
LED strips on order to mount under the bed rails, probably wire them to the cargo light.
Up in the mountains again tomorrow - and thunderstorms predicted, but gear will stay dry