The flat is excellent. I just spent a month in it, and there is nothing bad to say about it. I think this is one of the best airbnbs I have stayed in. The flat itself is larger than what it looks like (the separation of the two spaces is very well done, and the furniture is very comfortable), there is plenty of storage space, and it is very well equipped (the washing machine was particularly welcome, but the star of the show is, bar none, the record player with its associated record collection!).
The neighbourhood is also great. Plenty of restaurants/bars/cafes etc, very well connected, and very good supermarkets and shops around it. I did not need to go far for anything I needed.
Enzo and Romain were extremely helpful as hosts, and always available for questions and enquiries. The flat was spotless (and I cannot stress enough how clean it was!), and they were very kind on arrival, leaving washing powder, cleaning products, toilet paper (even Dove soap!). So, really top notch hosts.
I can only say that next time in Paris I will try to get the flat again.