I'd definitely recommend Livia's place. It is in a great location for sightseeing (the 16th arrondissement) and it's located in the courtyard away from the street so it is extremely quiet. I didn't get to meet Lydia but her instructions for check-in were precise and easy. She also checked in on me several times during my stay there. The apartment is just like in the pictures: equipped kitchen for cooking, eating, storing food, small nicely decorated bedroom and little bathroom with good warm shower. All in all a good experience and worth the price. I am not picky but a few notes for those who have claustrophobia or physical ailments. The apartment is indeed very small, good for one person, but everything just fits. The bathroom is functional but even tinier. The bed is hard. Some people might also have trouble with the steep stairs leading to the second floor. So no luxuries, not a hotel, but a quintessential Parisian experience for people with low budgets. I felt like I lived in that neighborhood. I would consider returning.