I'd been thinking of trying a programmable thermostat on one of the heat pumps at my business and bought this one, based on reviews and features, to replace a quirky Honeywell. After a quick call to White-Rodgers to make sure I was wiring it correctly, I installed it myself with no problems.
Programming, though a little tedious because of all the features, went smoothly. The instructions were easy to follow, and the thermostat is working well. I'm planning to buy another one for my other heat pump.