I have an ARE locking tonneau. Fiberglass is very light, one person could move it, but I prefer two people just because it is bulky and I'm fairly small (5'5" 125lbs). Mine is held on by 4 clips, unscrew one allen bolt on each and it lifts off. The shocks and locking mechanism all still function perfectly, it was a factory order so it has been on the truck for 105K miles. When I moved to Ohio I packed all my stuff under it, locked it, and set on my way. Did the same thing when I moved back. It was nice because I could pack lightweight or expensive items in there and not worry about them blowing away or being stolen. It also looks good.
Very nice, highly recommended and well worth the money (although mine came on the truck).