Caterina was friendly and helpful, and even allowed us to use the bathroom when we came back in the evening of our check-out day to pick up our luggage.
The apartment is perfectly located; the room and bathroom are spacious and were clean and tidy.
We couldn't lock our room, but it thankfully didn't cause any problem in our short stay.
Something to remember if you carry heavy luggage: the apartment is on the 3rd floor and there's no elevator.
All in all, a very recommended place to stay!