Had the pleasure of using them for service on one of my unit the A/C was not cooling right. I setup a appointment for service and they came on the day we setup. The tech arrive and diagnose the problem right away which was a capacitor not working right.
So the service call was $ 225.00 including the part and labor. The only downside was the tech show up late outside the timeframe window agree upon -late by 30 minutes.