Anyone in the U.S. Do you have experience with Meross 510 and 550 series light switches? Fine print shows that “only works with the Meross application”, however they are also compatible with Homekit. Does that mean it will join your home, but you can only control it through the Meross app? Also, on the 3-way 550 model, it says you only need one for a 3-way setup. Does that mean I can have only one 510 on the other side of the switch or do I have to have a stupid switch on the other side of the switch?