If you are going to be beating on the truck and wheeling it often then i think its a good investment. You dont have to worry about scratching it and the body rusting as quickly and if you ever do it has a lifetime warranty so who cares. Heavy? It couldnt weigh more than a couple hundred pounds at most which I doubt you could feel. I think it looks better than scratched up paint, but worse than decent paint. So you have to ask yourself, would you scratch the **** out of the paint if you didnt bedline the whole truck?
2004 Ranger FX4 4.0L
Superlift W/ Fox Coilovers. BL. Bumpers. 63" Chevs. 6400's. 4.88s. 35s. Magnaflow. Air Horns. Winch. OHC. 8.8 L/S. And the list goes on...