There were three of us (a couple plus an older single friend) and Anny Claude's apartment was just perfect for us: a 5 to 8 minute walk to various metro stations, groceries and bakeries on the doorstep for basic food supplies (and a couple of minimarts a little further away) and plenty of very varied restaurants (from very traditional French to Argentinian and Italian) within a 10 minute walk radius. You really feel like you're experiencing a slice of real Parisian life with the school right opposite.
The beds and linen were good quality and the place was very clean. The check-in process was very smooth and friendly and the instructions in the flat were very helpful too. We had a fantastic time generally in Paris and Any Claude's apartment contributed greatly in making it all possible.