Maria's place is a lovely little room in a very convenient location about a fifteen minute walk from St. Peter's Square and less than ten minutes from the nearest train station and buses which is so very helpful. It was extremely clean with excellent furnishings and a lovely balcony. We were easily able to meet someone for the keys and the air conditioner was very welcome in a hot Roman August. There's even small restaurants, fruit stalls, and a 24 hour grocery store on the street for real convenience!
I would certainly recommend visitors stay here in the future.