we use Schluter in every bathroom we do. I dont know much about them as I am not usually involved in the install. I know the Matt is Schluter, as for the wiring and thermostat I'm not positive. Every customer loves it.
I went with the Suntouch about 7 years ago in the master bath and it has worked just fine. Thinking of doing the same in the sunken living room with cathedral ceiling. Gets a bit chilly at floor level.