Found this place on Tripadvisor's City app, within walking distance of our hotel by the Piazza Portamaggiore (in Tiburtina)---about a 25 minute walk. The neighborhood is a bit out of the way, and having to walk under the train tracks (through tunnels both ways) is sketchy at night, but there were always plenty of people out. We had a large group and did not worry, but I wouldn't walk alone.
We had had several good pizzas by the time we came. Most of us ordered pasta. The portions were very large (several people did not finish) and everything was delicious. For appetizers we had fried calamari (perfect), steamed mussels (fresh), and bruschetta (so so---balsamic vinegar and olive oil were just okay). Many of the pasta dishes had freshly made noodles. The pasta with clams was voted the best of all. The grilled octopus dish was very salty and a little greasy. The one person who ordered a pizza loved it as well--- wood fired pizza, chewy and flavorful, perfectly done.
The waiters were very patient with us, especially with the kids. They filled our water promptly on asking. We were seated in the basement where there was air-conditioning. We came at 7 PM and left around 9 PM; it looked like the place was getting busy by that time. Mostly locals, very few tourists. Many other restaurants were busy in the neighborhood as well; the competition and the out-of-way location means it must be good to survive. It is.
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