I spent one month at Carole's apartment, and found it to be very comfortable and perfectly situated (a couple of blocks from Nation, which is well-connected to the metro system). Carole was extremely accomodating of my requests relating to check-in and check-out, and even left a delicious breakfast with homemade jam for my first morning.
The apartment is light and airy, has a well-appointed kitchen and spacious bathroom, and is a great place to have as a base when exploring Paris. My stay couldn't have run more smoothly - Carole was helpful in responding to my enquiries, and provided useful information relating to the neighbourhood. I really enjoyed my stay here, and would recommend the apartment for anyone visiting Paris for short or longer periods of time!