The place is cozy for 3 people, but if your trip involves full-day exploring and just coming home to shower/sleep, then it's all you need. It's conveniently located down the street from the metro, which is a major benefit!
As previous reviewers stated it has a "musty" smell, kind of like a camp cabin, but we did not mind it.
The neighborhood has plenty of restaurants and other spots to enjoy that are less touristy, which we certainly appreciated. A lot more of a local scene than staying in the heart of Paris, plus its quiet at night for a good night's sleep.
Overall we enjoyed our stay!