Federica's place is very clean and nice! It is even better than on photos. The location is super, almost next to Vatican walls. We were there in November there were plenty of tourists, if you want to enter to St Peter, then the best time is from 08:00 to 09:00 the latest. And one can buy Vatican museum priority entry ticket from the shop of St Peter with 20 euros, while ticket inside costs 16 euro. Perfect price I think!
Husband of Federica Dario met us and was very helpful with directions and suggested his help even with printing our boarding passes!
I would defenitelly suggest Federica's house to my friends!