I am loving this extension. The first day I had it, I installed it on eight different wall-mounted computers in our office so I could display Salesforce Lightning dashboards with all of our teams' performance metrics! It's been wonderful. The dashboards are always showing the latest data, and -- an unexpected blessing -- the refresh prevents Salesforce's session timeout! I can set-and-forget the TVs -- no need for me or anyone else to log in and get them going every day.
Salesforce administrators like merely so much on these sorts of tools to close the functionality gaps in Salesforce, and this is a great one with an excellent, responsive team behind it. 10/10 would recommend!