Wonderful very lively neighborhood with lots of bars/restaurants/shops. Close to train and metro stations and the major sights of Paris. Since it is lively, there will also be some noise, though in the bedroom it is pretty quiet, so no problems to sleep.
The appartment is very modern (by Parisian standards, i.e. bath, windows, kitchen) and quite spacious. The kitchen is well-equipped, there is a nice modern shower. The balcony is fabulous and big enough for two people to have dinner/drinks etc.
The communication with Cécile was efficient, we were welcomed by her friend Vincent who showed us everything while Cécile came for the "check-out". Both were very friendly and easy-going and willing to help (which wasn't necessary since we know Paris very well).
We would definitely stay there again!