I called Greg at AC systems and he came out and gave me a quote to upgrade my system from a 4 ton to a 5 ton inside and out. this was a tuesday and we agreed on what i thought was a more than fair competeitive price and was able to be there to replace in 2 days. we were amazed at the work that took placed and was completed in one day. he replaced the units and duct work and added an additional return. A week later i was questioning my temperature and the run schedule of the unit, it didnt seem right. i called Greg again and the same day he had a tech out and replaced the thermostat that was preexisting and solved the problem. as of today we couldnt be happier or cooler with our choice of AC Systems. i will definitly recommend Greg and AC Systems to all of my friends. Mark