1-star is generous. I'm not one to post bad reviews but I have been completely blown away, speechless in fact, at how bad Google's product and customer services are.I've had a Hive thermostat for about 8 years, was on the fence for about a year on whether to change to Nest because 1) I wanted to be able to control the temp via an app. 2) Thinking Google is a renowned global brand and their product and services would be world-class.Hahaha.... how wrong I was.I changed the Hive to the Nest and have had nothing but problems ever since.Long story short, I have uninstalled the Nest and returned to the trusty Hive. All in all it's cost me almost £500 including the product and 2x installations.What is actually worse than their product not working is how awful their customer service is. By far the worst I've ever experienced by any company in all my life.An expensive mistake but had I known how bad the experience would be I would not have made the change in the first place.For anyone else on the fence between Hive and Nest, stick with Hive.