Only bad, is that you need to be connected on a very old router to be able to connect them to the internet.

I was force to use 10yr old router to force my connection on recent smart phones to 2.4ghz...than once SSID configure, i shutdown the old router and the nanoleaf connect to my recent router (as I was using the same SSID).

All recent smartphone dont offers the ability to force connections to 2.4ghz, same for recent router.