Ars Technica has a great discussion of the revised Plume "superpod" with comparison to Orbi and Eero. This isn't the end-all of reviews as it doesn't test ethernet backhaul. But a good discussion, useful reader comments, and a launching point for further research.
https://arstechnica.com/features/20...s-new-superpod-hardware-is-here-and-its-fast/
https://arstechnica.com/features/20...s-new-superpod-hardware-is-here-and-its-fast/