My wife and I have been to assorted European countries, including 3 trips to Italy, with 2 of those since '06. We had avoided Rome, not wanting to visit a "big" city" (been to Paris, London, Amsterdam, Barcelona, Munich, Vienna, etc...) but surprisingly LOVED Rome.
All the while I observed with an eye to someday riding a bike around the city. I was shocked somewhat to read that you rode the "new" Appia Way", as that's an incredibly narrow and congested road that I would have avoided, as well as finding another route to the seaport. You choices of places to visit were smart though, as they show, somewhat, the real city. Terrific story that I found inspiring.
Thanks
SB