I have a similar set up, and use a Google mesh running simultaneously with my ATT signal. Everyone here refers only to Eero’s–are they substantially better than the Google product? A store salesperson talked me into the Google product. Also, this thread makes me wonder if it is a bad idea to have the wireless systems running at the same time. Anyone have a thought on that? I tend to go back and forth, depending on what signal has the best Speedtest numbers at the time.