I was just hoping that it would make our pool close to a cool instead of freezing, we left the cover on for a few days and today was in the low 100's and we swam in the evening and it felt almost too warm like a very warm hot tub. It definitely works well. I hope it holds up for a few years. Definitely worth it for us, especially with it being on a reel. Quick to roll up and redeploy.
Rating: [5 of 5 Stars!]