Simona and Fabio are wonderful hosts (we had a problem with the hot water and they fixed it immediately), and the apartment is in a lovely, tranquil area of Rome - it's close to the bus stop and 4 stops to Termini and all the madness in the center.
The terrace is gorgeous, the place is comfortable, thoughtfully set up, tiny but cozy. You have everything you need here for an intimate holiday, or working holiday in Rome - I would definitely come back!
Highly recommended.