Reviews for Garrison thermostats are generally poor, with an average rating at Amazon.com of 2.5 rating out of a possible five stars. The reviews at Canadian Tire tend to be negative with a below average rating of 2.3 out of a possible five stars.
A reviewer at Canadian Tire claims that the thermostat cannot turn on the heat when it gets cold despite all the buttons being functional. Only one reviewer at Canadian found the thermostat efficient since it displays the humidity. Also, one reviewer at Amazon.com gives the thermostat a four star rating since it can light up in the dark.