This is really great. Thanks for the share. I would add some more aspects that is behind your success apart from the Product page. Say you have a good product page but the look and feel, load time etc are not perfect then probably the user will move out from your eCommerce website.

This is the data which Google doesn't want to share as it is associated with Google login's/partners.

If you want to see more information on your visits then you can choose secondary dimension for "Landing Page" This might help you to figure out the visits.