Pages of responses on various covers and I know you are looking for something specific but it might help you to look at the threads for in general. Some love them and some hate them but you have to put it on each time and get if off each time and be sure it does not wear on the finish with the wind. Try the search in the gold bar at the top of the page.
To me, coach covers are like putting a huge tarp over your house to protect the roof. Kinda defeats the point of having a sound roof... I think it would be better to invest in proper RV roof maintenance (regular cleaning, and when necessary, resealing and recoating). That's my plan anyway.
I cover mine because I live in the pine trees. Nothing worse than sap droplets all over your rig, it can cause major paint damage in a short amount of time. It's a constant struggle with our vehicles.
Can't say I "love" my cover but generally pleased with ADCO brand.
Keep in mind covers generally last 2-3 years before needing to be replaced.