We spent a week end in B and B la Lupa and we had a great time in Rome. The district is next to hold Trastevere quite served by local transport. The room was clean and cute although at the ground floor and with a tiny bathroom. The breakfast is in a bar nearby and it's not so rich, just a cappuccino and a small crossant.
The price of the room is a little higher than how really worths.
Cristina is very friendly and available.