My A/C unit in my house stopped working Sunday night at 4:00 pm.(Hottest day of the year so far, ~86 F in April!) They called me back this morning and are at my house at 1:30. Both the dispatcher in the office(Fernando) and the technician(David) were very friendly. David worked on the unit and checked everything(EV-RY-THING!!) multiple times. It works so much better now. I will be going back to Mr. Cool exclusively. Great company.