AllStar came out on short notice to help me finally try to resolve an issue I have been having with my air conditioning unit for the past six years. Jon, the service tech who arrived, was very professional and knowledgeable. He showed up on time for the job and was quickly able to diagnose the problem. He fixed what no other air company has been able to fix! I was so happy that I was more than willing to pay the full price for their services instead of staying with my home warrantee company. AllStar is great!