I say this as someone who lives in an 18 square meter flat, this place is small. If you have large suitcases there isn’t really a place to put them. The bathroom is also very cramped, but has everything you need. It’s a good place to stay if you don’t plan on spending much time in your Airbnb and are just looking for a place to sleep and shower while visiting Paris. The street is quite noisy in the evening, especially if you have the windows open for fresh air, but having some earplugs meant we slept just fine.
Check in is a bit late at 4pm if you have a flight arriving in the morning like we did. Overall it was a good stay for our few nights in Paris.