I have an LG system on my houseboat with a heat pump and three air handlers. It is 9 years old and has been on generator power for the most part. I have not had a problem.
Five years ago I put a Mr. Cool system with the heat pump in the upstairs of a second home that my kids were living in. It has two air handlers and has performed flawlessly.
Last year we installed another Mr. Cool system in that home downstairs with a heat pump and three air handlers. It has worked great since then We had duct issues (older home) and did not want to tear out the ceiling downstairs to replace them. It has worked great so far.
