I stayed at Lucia's for one week and had a great time in Rome. She is a caring host and can give you some good advice on sights and restaurants. I think the room is big enough to stay longer than i did, and like the separate bathroom it was clean, bright and comfortable. The flat is in a calm neighborhood but still close enough to reach the city center in a 20-30 minute walk. Trastevere is even closer. A train station is just two minutes away so you can get to Fiumicino in around 30-40 minutes with the train. I would definitely recommend to stay, here and will definitely contact Lucia for my next visit to Rome.