My girlfriend and I had the most lovely stay in Valentina's gorgeous apartment! It has a modern charm, very close to metro and bus stops and only a few minutes walk to the Vatican (great for us as we went early in the morning to avoid the long queues!). A supermarket was also directly across the road.
Valentina was the nicest host and so accommodating. She gave us excellent recommendations for sites to visit. When we accidentally left an item of clothing in her apartment she was so kind to send it back to me in the post (within a day!). The apartment is much larger than the photos, and very clean with a comfortable bed.
Would definitely recommend staying in this apartment when staying in Rome and would definitely love to return.