Amazing place to stay! Bastille is extremely lively with an almost endless amount of restaurants to visit. However the key collection could have been smoother. For anyone staying in the future, the secure box is inside the Carrefour to the left. Also, if you arrive back at the flat and the main gate is locked use the key fob on the keys, as the code provided does not work.
Other than this however, we had an amazing time in Paris!