The thermostat works very well except that it does not have temperature differenatal setting. Instead it uses algorythems. That may work well for some but not me. I had mine set at 74 here in florida and it kept it at 74 which means the system was cycling mutch to often to keep it at that exact temperature. With a differerential type thermostat you can set it to let the temperature drift a degree ot two so you don't have all the ons and offs which is much easier on the equipemt.
It works ok, but we don’t like that you can’t set it for a range for it to both heat and cool between, i.e when it gets below 19 we want it to heat up to 21 and if it gets to 23 we want the air conditioning to bring it down to 21.