We stayed at here for a week and had a great time: it is located in a nice quiet area very near to the metro station. You can get to the centre very quickly. There are also many shops and restaurants nearby.
The apartment and the room is very clean and has everything you will need for your stay.
We haven't met the host in person because she was away, but she replied really quickly to any messages.
All in all - highly recommended if you need a place to stay in Rome :)