I was lucky enough to have 10 days in Paris. I researched apartments extensively, and had originally wanted to stay in the Latin Quarter. However, after seeing Claudia's place and the reviews, as well as her fair pricing, was swayed to stay there.
This is the second time that I have stayed somewhere that is an "active" place of living of the host. It IS very different to stay somewhere that you know someone lives and I wanted to point this out - it is similar to staying at a friend's house. It is NOT spotless, there are imperfections and things everywhere, and is not so stylized like a place solely used for visitors. I have to be honest that it took me a day to feel comfortable, but I DID feel very comfortable! At first I wasn't sure what we were allowed to use or not, but then it never felt that we were intruding or anything was off limits. It really did feel that we were at a good friend's place. Claudia also is VERY helpful where ever she can be. I sent her many messages because I needed help with planning before I arrived and also had some issues (medical) while there that I had to contact her about. She was always available and I felt that if I needed her to come help us she would. I ended up loving the area and returning to the apartment after a whirlwind day of tourism. It is quieter. Note that there IS trash pickup on Saturdays at 8am so hopefully you will be up :) The place was warm and so was the shower and the bed was delightful. I also enjoyed how close the metro and stores are and even restaurants, etc.
The stairs KICKED our butt, to be fully honest. We are in reasonable, late 40s American shape (take that how you wish!lol) but it was not easy to take those flights but totally doable since we basically only took them once or at most twice a day. I do think someone with ANY accessibility issues would struggle. I also, and this is just for me personally, missed having a balcony or personal outdoor space and didn't feel that the lower space outside (although enclosed) was doable because it was cold (and those stairs).
I loved the windows and cozy feel of the place, and the sweetness of the host. I definitely recommend it for the price and location and feeling of comfort. I miss looking out those windows!