When I got it, I went over install instructions and began trying to put it in. To my surprise, it was later determined by Optimus that the unit was damaged. I had trouble installing as the wing nuts and bolts were not securing the unit. In addition, it was an extremely tight fit, which led to scratches on my bumper (textured portion near the hitch area). They allowed me to return the unit and I sent it back.
Overall, I probably won't buy an actual cover again, mainly due to the cost.
Good luck man! I hope things come out well for you.