There were two things that pushed me to the SLZB-06:

* deCONZ was slow to get new device support and I had purchased some devices that weren't supported (Ikea STARKVIND) at the time. I think this has been improved since I last used it though.

* The SLZB-06 can be powered by PoE which gives it a lot more flexibility than anything connected by USB. Also, since it's not USB-connected, it's a lot easier to deal with (no need to figure out USB passthrough, etc).