Location, location, location. Centro storico, the Vatican, and Travestere are all within easy walking distance. (Later in the week, I found a location near Termini (on the metro) to be more convenient for the Colosseum, Trevi Foundation, the Spanish Steps, Piazza del Popolo, etc.) The studio was clean and comfortably appointed with thoughtful extras like cookies, milk, and tea, umbrellas, and scissors. I felt very safe here as a single female traveler, and the environs were as quiet as one could hope (some late night noise from loiterers in a little square below). I would not consider this a true B&B with "breakfast," but there is a tiny grocery store across the way where one can get fruit, yogurt, granola, etc. Also, apparently the water in Rome is potable, and there is a "big nose" fountain right outside the apartment where one can fill one's water bottle, but I opted to buy bottled water from the grocery, which was convenient. The host is accessible for questions, and she checked in with me halfway through my stay. I think the space could be tight for two travelers (you have to really like one another!), and the bed could be more comfortable. However, for location, safety, and value, I was pleased with my stay.