It was an unforgettable experience working with Radu. He spent a great deal of time explaining what would work best for my unit and answered all of my questions. He was in no rush and he took his time to make sure I understood everything. I could really trust his work for I could see that he's professional and was thorough in fixing up the problem. I had no questions about quality. It has 100% satisfying quality and I was delighted that my unit was in good condition again. Perfect repair! I'll be calling this company again for air and heating repairs service needs.