This place is pretty tiny. We were five adults and a baby, and it was very, very cramped. The apartment is much smaller in person than it looks in the pictures. However! The location is fabulous. A 5-10 minute walk from the train station and 4 metro stops from the duomo. The gentlemen who checked us in and out were lovely and very helpful.
The apartment itself is nothing special but it will fulfill your basic needs, and the courtyard is very beautiful.