I got the Black Blue Solar Cover from Doheny's Water Wharehouse
Doheny's. From my homework, Doheny's appears to be one of the cheapest Co.'s out there for most pool supplies.
Pro's that I will attest to:
-Increases water Temperature
-Maintains water Temperature, i.e. Overnight temperature drop is not significant
-Decreases rate of evaporation tremendously
-Chemicals seem to last longer
Cons:
-Cost
-Uneven Heating. 1st foot or so gets extremely hot, after that it is fairly cold. As noted in a previous post in this thread it results in warm & cold spots in the pool which ultimately leads to; "I couldn't control myself" comments.
I'm not sure if these results from other solar covers, but I would say it is probably one of the best investments I made in my pool.
Just be sure to check the thickness (mil) in addition to the price. I went with the 15 figuring I would probably rip the 12.