We found the food (pavé, tarte tatin, and grillo) perfectly acceptable for the price in this busy restaurant, and the service was excellent. Water for our dogs was provided immediately without us having to ask. We would gladly return.
We arrived as a group of nine without a reservation, including a child, a baby, and a stroller. We received a very warm welcome, and the service was quite quick.
I don't know if they serve continuously, but we arrived at 2:30 pm and were able to eat whatever we wanted.