Great place to stay, with easy check-in and check-out, and well located with some good restaurants nearby, buses and the metro at walking distance. Inside, fully furnished, cozy and quiet. The door key is those hard to make a copy of, so we were comfortable leaving our belongings there. The shower is a bit tight, so if you're big, consider this.
Gloria, the host, is super friendly and helpful. I left documents and money in the apartment during the check-out, and she promptly managed to connect and return them.
I strongly recommend this place to anyone looking for a good stay in the heart of Rome.