We couldn't have hoped for a more enjoyable stay. The apartment is very clean and calm. The decor was culturally stimulating, which reflected the St Martin Canal area; the immediate area around the apartment has plenty of restaurants and cafés. The canal itself is nice to stroll along, and if you have children, there are a few small play areas next to the Canal. Colonel Fabien (up the road) and Jaques Bonsergent (down the road) provide good links to almost anywhere.
The chess set in the apartment received plenty of use, as did the train set. Although fitting the latter back in its respective box was a 3d version of tetris!
The kitchen was very well equipped, big fridge freezer, dishwasher worked fine, as did the washing machine and dryer. WiFi was constantly reliable.
Our first family city break (in August no less!) was a roaring success, thanks in large part to this apartment.