Over the last 3 years I have had the greatest experiences with 4 A/C. Bob and Debra have never been less than kind professional and honest. But I frankly, I didn't hire them for their personalities. I hired them for an aging failing AC unit. Each visit resulted in a well checked and repaired unit. The cost of repairs have always been fair. Never was I told I needed something done that wasn't necessary. Infact, I was positive I needed a new unit this year. The unit came on when it wanted went off when it wanted with no regard to thermostat readings. Not to mention there were times the unit never came on at all. I called 4 A/C for an estimate on a new unit. Of course, I got 3 other estimates. Not only was the unit just fine, and all I needed was 2 AA batteries for the thermostat we also discussed the cost of a new unit should I need one in the future. You got it, his quote was $1,300 cheaper. Bob is not just efficient. He is an honest respectable person.