Very disappointed with Google after investing in 12 Google Nest speakers for my house. As an professional Electronics Digital/RF Design Engineer I can say the hardware is good but the software is in need of a complete redesign, multiple software problems, too many to list here e.g. speaker groups not working as expected. I've tried all recommended fixes, resetting everything, I've spent hours trying to get it to work as it should. Two months on and still not working as it should ☹️