Great review. I have been looking at something like this for a while now. I too don't like truck caps(toppers), but I have to admit they are very useful. I do a lot of long range shooting (500+ yards) and would like to use my bed of my truck to lay prone instead of the ground(had a run in with a rattlesnake not to long ago lying prone on the ground). It gets too hot down here to shoot out of my bed without shade. Another good use for me would be camping in remote locations like on the beach or when we go to Big Bend. I would much rather sleep in the bed of my truck than on the ground.
Only bad thing for me is that I got Ram Boxes and I don't think anyone makes them for that.