I have five of these switches along with apple homekit and LIFX bulbs, mostly it works well however quite frequently there will be a delay in pressing the button and the lights changing.. up to 30 seconds. Sometimes the buttons just don't work altogether. This has been a problem for a while now and others have also complained about it. I believe phillips has become complacent with their lead in smart home devices and don't care so much about fixing issues. I've seen this play out before so I think we will see a different company become the market leader in a few years or so.