After going through three electricians at Gem Plumbing & Heating, we finally got our money back and decided to hire someone who knew how to install a Nest thermostat and didn’t read the instruction manual. The guy who came was Phil Platt(reading from his biz card here) and he was awesome. He was able to tell us more in twenty minutes than the Gem guys could in three hours. Even though our system wasn’t technically compatible, Phil took the time research how others with our apparently rare system had installed their Nests and came up with solutions that didn’t involve replacing our entire system. He was very knowledgable about everything, friendly and professional. I’d definitely use them again when we need them.