We had a great stay in this place. It has everything you need in a very charming and authentic Italian building. 2minute walk to the metro will get you anywhere you need to go.
When we arrived Maurizio was waiting for us to settle us in and was extremely helpful and welcoming.
Only complaints would be poor wifi and the kitchen is not suitable for cooking - it is a desk in the hallway with a microwave+kettle and some basic bread/jams/paper plates. But it's fine for a quick bite and the range of fantastic restaurants in Rome means you don't really need to cook at home.
We thought this place was great value and would happily stay again.