Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Works well...almost too well!

I got this cover for our Intex 12x33 metal frame pool because I wanted the water to be a little warmer. Well I got what I wanted - the first time we tried our pool after having this cover on, the water was a toasty 87 degrees (on a 73 degree day in California). That was a little too warm for me. I found that by leaving a small section of water uncovered in one area, that leaves that water cold and when mixed in with the rest, the pool becomes a comfortable temperature.The cover (when completely spread out) also helps in keeping bugs and debris out of the pool. Keep in mind though that if you have a metal frame pool, the cover will not quite cover all the way to the edges so you can still get some debris in the water.Overall, I do recommend this cover, but you may have to finagle with it if it gets your water too warm. And on really hot days, I would recommend leaving it off your pool altogether unless you want your pool to be like a hot tub.