Knowledge and service..
I signed up for their pool service just a few months ago and I'm really happy with the guy that cleans my pool. He's not like the others "flight by night" that I've had in the past that spent 5 minutes tops in my pool and were gone. If I have any problems the have mechanics that come and check my equipment within a day or two. Last time that my automatic cleaner broke the guy took it to the store they called me with and estimate, they fixed it and brought it back. I did not have to lift a finger! They are really good and have it together. Will definitively recommend them to anyone.