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though the install and configuration is easy to follow the issue I faced was on the wifi configuration. Email exchange with Honeywell support took a few days and finally a phone call from them. The issue was that it sees my 2.4Ghz wifi but sees it as an open connection where in fact it is password protected, the thermostat router works as it was able to connect using pjone's mobile hotspot. Eventually I found an old thread dated six years ago that Honeywell thermostat wifi does not connect if the id name and password are thirteen characters longer, and once I changed it to meet that limitations, the setup completed successfully. Emailed Honeywell on this to either update their firmware to accept longer names and password or indicate in their setup documentation that it has that limitations.