I would not suggest that you could find a better host in Rome than Daniela. The apartment is wonderful, 3 spacious bedrooms nicely appointed each with their own bathroom. Less than 10 minutes casual walk to the Vatican.
Our hosts truly made the difference to our entire trip, they are some of the nicest people you could ever wish to meet. They do everything possible to make your stay in Rome a memorable one, even down to giving you a mobile phone to call them should you need any assistance. Great people, a great apartment, in a great location in one of the worlds great cities.