My 2010 Ford Ranger FX4 got sprayed with Armaguard at a local truck accessories dealer. Line-X is very popular, but there were no local dealers...nearest one was at least 4 to 6 hours away.
Heard horror stories about those roller type tonneau cover getting stuck in winter in cold temps.
Personally, I am considering the Truxedo Low Pro QT (soft cover low profile), Access Literider (soft cover), Extang Solid Fold and Bakflip G2 (both are folding hard covers). Then I will be adding a Pop and Lock tailgate lock.