This is the second year we're using this pool maintenance company, and on reflection, only continuing because there are sadly so few reliable, professional companies that do what they say they will. Pool opening and closings have been pretty seamless due to their simplified process, but this year full of small problems like not putting in the correct plugs, jets and equipment leading to even more problems. Last year, there were a couple of issues like equipment work without our approval (turned out it wasn't even needed and they cut a line), and liquid chlorine being splashed on our pool deck. I believe the senior folks want to do things right, but those doing the actual maintenance are too inexperienced to carry through. UPDATE: this pool company resigned our business, after they couldn't solve an algae issue. Another company stepped in temporarily, added some algae killer to the pool, and voila...problem solved.