I booked room #3 but stayed in room #1 since there's a little issue for bathroom in room #3. The advantage of this apartment is really close to Tram station, the room is clean, and Luca is a friendly host. However, it's really noisy at night since room #1 is nearby the intersection of roads, and it's a little bit far from Metro station, It would be better to take Tram no.5 or 14 to this apartment from Termini station.
To sum up, it's not a bad experience.