We stayed at the Express by Holiday Inn San Giovanni.
http://www.ichotelsgroup.com/h/d/ex/...questid=299186
Excellent. Included breakfast was amazing. Eggs, bacon, outstanding pastries, even sandwich fixings. The HIE is near a major railway station, a short walk to the metro and close to a bus stop. There are several restaurants nearby. The kids would probably enjoy one called Pastarito, Pizzarito or something like that.