If your cover has the magnets inside the fabric to hold the corners down on the doors, please be careful about how you pull the cover off, or in windy conditions; these covers can scratch/pit your paint job. An Adco windshield cover wrecked my Sprinter's full body paint and I ended up having my drivers door repainted.
We purchased a similar cover from Camping world, 3 years ago and its still going strong. I like the cover because it gives one lots of privacy at night and it covers the windshield wipers to keep them out of the sun and dirt. Best feature is the sides and the front. There are flaps in these 3 places and they can be rolled down and held in place with Velcro. There are screens under these flaps and with the windows down on the sides of the cab it lets air into the unit and keeps the bugs out.