We recently installed four of these in our new home. With two units and a total of four zones this was the perfect solution. Setting them up was pretty simple and being able to manage them using my phone has been very convenient. Highly recommend this product.
I am happy with the product. Witch it will integrate an auto mode change for cold and hot as the weather changes. So he house will always be at the right temperature regardless of user intervention. Maybe with the next app upgrade.