This company is very professional and stands behind their service. Their service technician's was very polite and knowledgeable. He sold me a new unit at a discount price after my current 10 year old unit went out. I also purchased a new system called the air scrubber, it cleans the air and removes all bacteria. My husband and I have bad allergies. Also live in the country! I cant wait to breath clean air!!!! I highly recommend this company. I have been a customer of theirs for 7 years now.