Pierre-Adrien's apartment was great for our 3 night stay in Paris. The space was tidy and clean. The bed was comfortable. It is in a great location: close to a few metro stations and a good neighborhood to explore, eat, and drink. I really enjoyed the view from the main room window. We used the washer/dryer unit for 2 loads of laundry (small capacity compared to American units). Be prepared for each drying cycle to take 3 hours, this is explained in the apartment manual Pierre-Adrien left for us, but we did not read the washer/dryer section until after we had already started the first load. Read the manual first thing when you get there as it has a lot of helpful info, not only about the apartment, but also attractions, the neighborhood, etc.
The only negative to mention is the shower is a bit tight and short. Anyone over 5'8" (my husband and I are both 5'6") may need to bend the knees a bit, but with the nice handheld shower head, we were able to manage just fine.
Pierre-Adrien was very easy to communicate with. I would recommend this apartment to anyone traveling to Paris, especially if you want to stay in the Marais neighborhood.