Jeremy's apartment was great to stay in to see plenty of Paris - the metro station is right down the road and makes accessing the whole city very easy. It was clean, with a nice (if quite small) balcony where you can sit and eat. We did not spend much time in the Belleville area, but there are plenty of bakeries, cafes, supermarkets etc although the district itself is not the most glamorous. All in all though we were incredibly happy with the flat and loved our stay in Belleville!