Mike was excellent.  He came out promptly, did a thorough review of my furnace, gave me a complete breakdown of what needed to be fixed and the costs involved.  No pressure at all!  He fixed everything I requested in a timely manner and answered all my questions.  Finally, I would definitely advise signing up for their service plan.  You need to have your furnace and A/C units examined every year anyway.  Their service plan discounts those services, plus if anything breaks, you get preferential treatment and a discount on services and parts.  WORTH IT!