Sam came out for an appointment to diagnose my air conditioning problems. Sam was so much more knowledgeable about the ac system than any of the other 3 companies that have looked at it. He went the extra mile to figure out exactly what was causing the issue, and not just throw a fix at it that may fail later on. Very friendly as well. I will definitely be calling Sam for any future problems that I may have, and recommend him to others that want a thorough diagnosis.