Summer's place was absolutely perfect for my mom's week-long stay in Paris. The apartment was equipped with everything we needed, and the building having an elevator was a really nice plus (especially for Paris). The location was fantastic - right by line 6, and stores and bakeries within walking distance. Being able to watch the train was very nice, and the windows are very soundproof, meaning that the metro does not disturb you at night.
Summer was very easy to communicate with and very flexible with the few requests we had. I absolutely recommend her place, and hope we can stay again if we come to Paris.