A few good places where you can find reviews of the google nest company are.
https://www.consumeraffairs.com/homeowners/nest.html
https://www.trustpilot.com/review/nest.com
The Google Nest line of devices is capable of everything the Google Home was.
As smart speakers, they respond to user questions and commands, and can play music and video, too.
The main change from the Google Home line of devices is the addition of screens on most Google Nest devices.
While Nest is owned by Google, Nest thermostats and cameras still work with Alexa.
Both Alexa and Google Assistant let you combine your devices into rooms, so you can say commands like, "turn on the living room lights."
They both also support Routines, which let you combine multiple actions into one command.
I have a Google Nest device and I'm very happy with it.