I had great service from Shamrock they showed when they were supposed to and fixed the job the first time. My technician Lonnie went above and beyond what was asked of him. He worked on my unit in the rain so I could get my A/C working again. I know for a fact that someone else would of just rescheduled leaving my family out for another night in the heat. It is Arizona in the summertime without A/C it is unbearable.