Perfect place. Better than expected. Marie is truly wonderful and very warm and makes sure you have all that you need for your stay. Her apartment is so so so cosy, we absolutely loved it. Very bohemian and buddhist, the vibe is simply amazing. Everything was perfectly clean. It was a place we looked forward to coming home to to relax in a great setting with a warm cup of tea. I have been to Paris many many many times and this place is one I would book again.
I also like Belleville very much (the area) because it is so vibrant. The apartment is however on a very quiet street and you get absolute peace at night. The closest metro is Belleville station and it takes 5 min to walk to the apartment from there. So the rest of Paris is easily accessible from there.