Alex has been to my home in the past and I’d say that he’s extremely competent and pleasant. Earlier today he was here to instruct me on the Nest thermostats. Some of the settings were not correct and he patiently went through every detail so that I’d be able to confidently use the system both directly and by phone. Some odd things were happening owing to the way the settings had been installed so this was a helpful session that I wish would have been provided when the new thermostats were first installed. Thank you for sending him.