their controllers do not support suc/sis. E.g. you cannot use a battery powered remote switch as inclusion controller. What you can do is using their devices in a network with a SIS and an inclusion controller. E.g. I use the following devices:
* Aeon Labs USB Dongle as SIS, for the Core
* Aeon Labs Remote as inclusion controller, to add/remove devices from the network
* A bunch of Merten switches and dimmers
* A bunch of other devices (smoke alarm, door sensor, whatever)
that works fine and without any issues. The Merten switches/dimmers are very high quality. Just be aware that the electronic switches make a silent hum noise. I did pull additional ground wires to the places and used the relays insert where I found that annoying (guest bed room). Dimmers are silent, too. Overall I'm very happy with the Merten units (more than 15 devices).