We did not meet Katia - I think she pays for a service for other people to manage.
We met Valerie at the house, she was lovely and helpful in the information on the property. The location of the apartment was amazing! The picture is spot on from the terrace! When we climbed El Duomo we were able to see the balcony!
Finally we left some important documents at the property and didn't realise until we were on the train to Rome! Another lady called Cristina ( I guessed who managed the property) was amazing! She went above and beyond and had our documents sent on to us in Rome.