Worked fine (in a heating only home) until we replaced it this month. Apparently Google Nest is discontinuing support for this model in October. You can still use it locally, but no longer via the Nest app after 10/25.
https://support.google.com/googlenest/answer/16233096
I'll select someone tomorrow to allow more folks to see this posting.
Fair Chance Policy: I’ll wait before choosing a recipient to give more people a chance to reply.
2nd gen Nest learning thermostat (02472)
This offer has been gifted to someone and is no longer available.