I purchased 4 of the fans to replace my dumb fans as part of an interior redesign.  The fans are quiet except at max speed with no wobble.  But the homekit implantation is terrible.  I followed instructions have it on a dedicated 2.4ghz.  But was only able to add one fan.  Once added other fans can't be found.  Even tried to add it manually with scanning the number on the QR code.  Finally got a second fan added but then the first one that worked now shows non-responsive and no longer shows up on homekit.  I was hoping for as long as they have had homekit this would have been more mature on implantation.  Hue, nano leaf, Eve, Ecobee even adds accessories without a problem.  If you are thinking of these for a smart fan you might want to wait until they come out with a Thread.