Marie's studio is just as described. Overall it was a fantastic place for a brief stay, and Marie was a very responsive and thoughtful host. Positives: The location couldn't be better! Right in the center of Paris, in a safe neighborhood great for walking and with metro stops close by. The value is great for such a crowded city and such a great location. Downsides: The studio is very small and requires climbing a lot of stairs. The building is very old, has a bit of a bad smell, and the floors are uneven.
Bottom line: if you are looking for a great value in an excellent location in Paris with a stellar host, this is your place! It was just as expected, and Marie was very accommodating.