We had a new AC unit installed late in the year. The next year the unit would not start. There is a LED indicator on the panel that clearly showed the coolant level was too low. I showed this to the service tech, who ignored it and continued to make 3 visits to my house over 2 weeks before ending up adding coolant to the unit. He had assured me that there was no leak and the unit worked that year.Last year the AC was not used and this year we found it cannot keep the house cool. I would never recommend these guys to anyone. I am now on Homestars looking for a better company to do business with.