This studio is exactly as advertised and was perfect for our stay in Rome. Be aware that there are 51 steps up to the apartment, so consider that if you have any trouble with stairs. It was immaculate, and well-stocked with everything you'd need for breakfast - even wine for the first evening!
It's nicely lit, but off the street, so was quite quiet (considering the location in central Rome) at night. The location could not be better for tramping about in Rome - you are a short walk to the major sights, great food in Trastevere, and supplies at the market practically next door, or the outdoor market at Campo di Fiori, a short stroll away.
Rita and Fabio are great hosts, and even arranged to take care of our luggage the last day, so we could enjoy the city for one final full day. Do take them up on their offer of rides to/from the airport - you'll save a bundle!