Does the job well for our Mercedes motorhome. Easy to fit and stays in place. The insulated material definitely helps with temperature control inside. Only reason for 4 stars is I think it could be slightly longer at the sides.
Fits our Sprinter-based motorhome windscreen perfectly. Keeps the frost off in winter and the sun out in summer. The suction cups and straps keep it firmly in place. Much better than the universal one we had before which kept blowing off.