Hi, I use a cover when I am storing for longer than a month. I think it help to keep the sun UV from killing the coach. It is a pain to put on and take off but I have a good system. I make sure the cover is inside out so I am rolling out the outside of the cover. I roll the cover up from the front half way and roll the back half way. I put on the roof and roll out the front and then the back. It seems to make it easier and I can do by myself. The hard part is pulling the rolled up cover up from the ground. I put my car close to the coach and put the cover on the roof making the distance less to lift. It is somewhat heavy and I tie a rope around it to pull it up. I put bungee cords around it when I roll it up on the ground. I use a adco cover and think they hold up well. The sun will kill it in 3 years anyway. I have a 2015 Southwinds 34. It is too much money not to try to keep as nice as possible.