The location is great! Just a few minutes walk to the Sacre Coeur, two metro stations, and the local grocery stores and bakeries. Plus the view from the 5th floor is gorgeous!
It's also the perfect-sized studio for a solo traveler! The bed is pretty firm and as the photos show, it's a bunk bed that's close to the ceiling (it didn't bother me but might not be the best for tall people).
Had great communication with Kate from beginning to the end of the trip (no one could meet me in person due to the transportation strikes, but Kate was available through phone/message to make sure I got the information needed to pick up the keys). I stayed for about a week and had a great experience overall.