Product review (5 stars): Simple and Easy
I ordered this unit to replace the old original 15 year-old wall control after installing a Nest Thermostat (I did not feel like wiring the relays for the nest and just wanted to update the old control). The new unit was very simple to install and  only took about 10 minutes. The old unit had a larger footprint on the wall so I  have some touch-up painting to do around the base. I could have cut back the drywall to place it flush into the wall but again I was looking for a simple install. I do wish this unit came with a wall plate to universally cover any marks the old unit left behind. It has been on the wall for one week and seems to be keeping a more accurate humidity level that the old unit it replaced. This unit is very simple and offers only the most basic functions, but does them well.