Baptiste's apartment is far better than the photos. It is well-furnished and had all we needed for a 5-day visit. All the appliances were modern and worked well. The bed was super comfortable. Overall, the apartment had an exceptional interior design. While small (by American standards), it didn't feel small. It felt comfortable and stylish — especially the bed and couch.
The location is just outside of the Place de la Republique and a close to the Canal Saint Martin. The apartment is on a gated street, so it was very safe and surprisingly quiet.
Baptiste was very accessible (communicating through Airbnb) and was kind to provide a few beverages for our arrival. As is clear in the listing, it's on the 6th floor (which is really the 7th floor by American counting). So guests should be prepared to walk the 100 or so steps. It is worth it! We hope to visit again.