HVAC Feedback appreciated -

I've got a Lennox. Love it, you set the temperature and the humidity that you want the house to stay at, and that's it. The unit does the rest. Heat, air, humidifier, dehumidifier, and whole house fan all in one.

You can even program it to react to the outside temperature. It also has 3 zones, and you can set it for 5 temperature changes per day.
But... it's expensive to buy, but pretty cheap to run.