Handywoman

For future reference: when given the choice between two essentially equivalent products, one made by a giant multinational corporation that invented the product in question and one made by a company that makes ceiling fans, pick the former. Otherwise you may end up spending the weekend crabby and sweltering due to a malfunctioning thermostat.

(I ended up reinstalling the old thermostat and it works fine, so it's not like I can't wire things together.)