I ordered this for my 2018 gmc sierra extended cab bed. I have a roll up tonneau cover and with it rolled up, and the tailgate down it fit well. The truck bed itself is about 71\" long , not including the tailgate. It took less than 10 minutes to set up, without the rain cover. It was a bit of a challenge to get in without a step stool even with the bumpers foot step spots because there wasn't much to grab onto with the tonneau cover track down the sides of the truck plus I didn't want to get my foot or body caught on the tent and either fall into it or rip the tent. There should be an offset door to get in/ out, and the bottom of the tent door should go all the way down, not have the 6\" lip. It does create a good seal over the edges of the truck to keep the rain out The door section is made up of the opaque door and the window material but both have separate zippers that need to be opened and closed. They're both a bit finicky and takes a bit of effort to zip up. It has windows on either side plus a big storage pocket on either side. The sides have straps that have a metal end (with a little rubber cover) that clip over the sides of the truck. It would be nice if they included some sort of material to pad the plastic ladder locks, and if the end of the nylon straps were sewn over so they don't just slip out of the ladder lock (which happened three times just setting it up).
rich 
