The Karen's apartment is great, as shown in the pictures! It's placed close to metro stations (lines 1, 5 and 8) and many restaurants and supermarkets; just downstairs there is a nice boulangerie. Karen arranged with her friends check-in and check-out so we didn't have any problem to collect and release the apartment's key when we arrived/left, and she was always available when I contacted her. I feel free to recommend her apartment and I hope to come back here my next time in Paris!