On my visit to Florence (Italy) a friend recommended the Ristorante Ciro & Sons. We went there for dinner one night and loved it. It is a welcoming place, with frescoes on the walls, and the room, although small, is well-decorated. The service is good, and prices aren't too bad. It has a lovely outside terrace, and is right in the city centre. If you're in Florence and want a romantic restaurant, this is the perfect spot.