I stayed at Monica's apartment for one month. It's the perfect location to explore Rome's center. The apartment is just as described; it's clean, a good size, and fully equipped. As I was in Rome for a full month, I did a lot of cooking at home to save money, and everything worked perfectly; but there are, of course, tons of good restaurants in the surrounding area. There's a bit of noise, but that's to be expected in a city as chaotic as Rome (I only point this out so light sleepers like me will remember to pack their earplugs!) But the bed is big and comfy and it's so dark inside at night, that it feels like a cozy cave.
Monica was a lovely host, very communicative and helpful. Happily I got to meet her at check in, and she offered a lot of good information about the area and apartment. (There are also some good resources in the apartment itself.)