Not real happy, took out my $12.00 NEW 3M filter that I put in 2 weeks ago and replaced it with a cheap $ 3.00 no name brand and didn't say anything to me. I happened to stumble on it a week later. Also, blower making a big bang when shutting off and I asked about it and tech did NOTHING to fix it, Now I have to find time off from work again to get someone to come out to fix it.
