It was my first time using Donald P. Dick Air Conditioning and everything went pretty smoothly service wise. I having some issues with my A/C unit so I called up Mr. Cool and the only issue I had was that they came a week after I called them and it was one of the hottest weeks of this year. I get that they are very busy this time of year but that is a bit much. Other than that though everything went well, they said they had to replace the expansion valve and after they got that done everything was working great.