We lived in this apartment for two weeks. We really enjoy there.
The location is good which it just locate between two Metro station (about 200-300 meters) and in a walking distance to the Vatican city (around 40 minutes). The bus 46 and bus 49 are just nearby the apartment (20 meters) which easy to arrive the Vatican city and Piazza Venezia. Rome is a big city. It is better to take public transport for playing.
The apartment was clean. The rooms size was even bigger and better than the photos. There was almost everything you need in the flat even cafe, tea and water.
Although I haven’t met Valentina in person, she was easy to communicate with and gave a lot of help before we arrive there. Her father Orfeo is a so nice person. The check in time is 14:00 - 20:00. However, we arrived at kl. 23:00. Orfeo was waiting for us there. He kindly did his best to tell us all the details about the apartment even including how to use a lovely cafe cooker to making the Italy cafe.
Price/value ratio is very good. I would 100% recommend this lovely apartment especially if you live in Rome for more than a few days.