We have not met Bina but she was easy to contact when required.
The place is great if you don't expect to cook and eat for 4 people. The kitchen is small but equipped enough for having breakfast.
Aircon is both rooms was highly appreciated during the hot summer!
The location is at 30 min walking distance from the closest places to visit, else about 1 hour.
Note that if you come from Ciampino airport, the place is out of the fixed price (31€) (outside city walls).