If you are a single traveler, couple, small group (up to 4) or family looking for great value and wanting to live like a Roman, look no further. This apartment is even better than its otherwise accurate description.
Location: it is in the heart of Trastevere, next door to a wonderful little store that make homemade pasta; 3 doors up from one of the best fish restaurants in which I have ever eaten (Bisque); near Pharmacies, a Tabachi (for your metro tickets), a supermarket, wine stores, one of the best cheese stores in the southern end of the city, and the 8 tram which takes you directly to Piazza Argentina (major bus hub). And it is quiet, because set in the back of the building.
The building. It is a secure building with a private courtyard shared by 4-5 apartments. Your door opens directly on to it and a small table that is always in the shade, and your view consists of a peaceful courtyard lin a17th-century or so insula adorned with geraniums and other flowers tended to by the building's fulltime residents (who were to a person friendly and smiling). A lovely place to relaz after a day of museums and walking (you can and should walk everywhere in Rome).
The unit: it is a snug loft tastefully decorated with an eye to efficiency and comfort. The AC works very well, as does the internet; the TV includes satellite channels. The kitchen is typically small (they all are in Europe), and well enough equipped to make all of your meals--even the icebox is cold enough to freeze water, which is no small feat for a town whose infrastructure is so chaotically jury-rigged that it's a small miracle every time the light turns on. The bed upstairs is comfortable and the bullouts are an IKEA model I actually own so can attest to its comfort as well.
The owner: was lovely. The old AC broke the first night I was there and the owner replaced it within 12 hours of my reporting it. One of the other reviews complains about non-responsiveness, which is completely inconsistent with my experience (and, I'll add, everyone else's).
So if you (like me) have a bit of a taste for adventure and independence, and want to experience Rome a bit more intimately than you ever can in a hotel, this is an unbeatable deal and experience.