Marie's place is in a great location. It is very close to Le Marais and Bastille which have tons of restaurants, bars, and shops. We were able to walk to the Louvre and Notre Dame/Latin Quarter. The metro station is within a few minutes walking distance, and it was super easy to use the metro to visit places farther away.
The building looked a bit old and dated, but her place was clean and comfortable. The bed was surprisingly comfortable! I recommend her place for one person or a couple.