I'll try to leave an honest review for the next visitor to Paris.
Cons:
1. Strong odor / stench - As soon as I stepped into the AirBnB, there was a disgusting odor / stench that smelled like poop and rotten eggs coming from the bathroom. I'm guessing it's from the drain pipes and sewer underground running up to the bathroom. It was quite unbearable at first, and the smell filled the entire room. I contacted management about this smell and whether they could do something about it. I was told that they would check on it right away, but management never got back to me, nor were they able to resolve my issue.
2. Size - Room is a lot smaller than pictured. I came with one other person and there was barely any room for us to move around after opening up our 2 large suitcases.
3. Cleanliness - Bed had a mattress with a thin layer of sheets & blankets. The mattress was stained and dirty, and I felt uneasy sleeping on it. The sheets (washed) also had lots of stains on it. The carpet and sofa in the living room was a bit dirty and I felt uncomfortable sitting in it.
4. Temperature - we visited in September, so it was not a huge deal, but there's no air condition in the unit. It was very hot at night, enough to be sweating. There were two fans but there was not enough room to put it upstairs by the bed.
Pros:
1. Location is good, in the middle of 3rd arrondissement (La Marais). There's a lot of restaurants, stores and Metro stations available. However, if Palace of Versailles is one of your planned tourist destinations, it's inconvenient to get there from this airbnb by metro so we had to take Uber.
2. This seems to be a popular Airbnb in Paris, so overall - there's good communication prior and during your stay from the management team. But they never addressed my question about the stench.
3. Price is reasonable, but to be completely honest - if I had a second chance, I'd look to pay a couple more bucks per night at a cleaner hotel.