Not as good as other options
Unfortunately, I had to upgrade my old AC unit and decided to go with Lennox sure to Costco rebates. The AC itself works decently. But the app is crap.
First, there is no app support and repairs are only through the AC installers. Secondly, despite the temperature settings, the app runs my AC unit to settings that it makes up on its own. Thirdly, unlike other companies with regular app undates, Lennox is mainly an AC manufacturer thus the app rarely gets updated. #4 the web version is rendered incorrectly on my 34 inch monitor🙄. #5 most importantly, the app is not as intuitive or simple to use as compared to others.