There are a few things that I am not happy about. First replacing my high quality filters with low quality filters does not sit well with me. The low quality filters have less air flow not more. The technician said that the air flow was restricted. He also said there was some junk in the system with may have lead to the failure; which contradicts the use of a low quality filter. Second we were charged over $400 in labor for a couple of hours of work which seem very high. Plus it is kind of coercive to offer a free diagnostic unless we do not use their services; otherwise its $75. Third their website says 2 year warranty but our paperwork says 1 year. Finally the technician offered a solution for an attic filter system quote but did not give us one as promised. They do not seem honest, trustworthy or even competent for that matter.