Serena is a very nice host, kind and friendly. She welcomed us with a nice homebrewed espresso. They had good tips for breakfast in the neighbourhood. It's nice of this couple to welcome people to stay and share their appartment. Though we though the house was not the most suitable for having visitors: doors (of bath and bedrooms) are made of glass and make a lot of noise when opened/closed. Also, walls and ceiling are not soundproof. The feeling of privacy is therefor minimal.
For us the most uncomfortable thing was that the house smelled of smoke. Including bedsheets and towels. As non-smokers thats one of the worst things when renting a room somewhere.
The location was perfect for us and most of the time we were out to visit family and the city. If you plan to stay some time in the appartment i wouldn't recommend this shared appartment. But if you are out a lot and don't mind the smokey smell - it's a good spot for exploring the city!