re: Got the truck, now...

Full Bedrug + Bakflip MX4 here. Love it. My only complaint is you have to shop vac stuff (mostly wood) that gets caught in fibers. Also I found that while the rug itself doesnt mold it holds smells especially smoke. I backed my truck near my grill a few weeks back and smoked a chicken. The bedrug smelled like smoke for a week. I put our baby stroller in there and it smelled like smoke for a week as well.

ETA: Bedrug is full rug with sides and tailgate. Bedrug Mat is just the floor. They are both attached with velcro which is very strong. The biggest difference in the two is that the full rug is one piece from bed floor to tailgate. Nothing can fall betweeb bed and tailgate when tailgate is down.