We had a wonderful experience at Mei's place. Mei met us when we arrived and showed us all around the space. She had a basket of treats and lots of helpful information on public transit and good places to eat. (Plus guide books we could borrow as well.)
The apartment is so beautiful -- the pictures don't do it justice. Everything is set up beautifully. The balcony windows open out in every room. The beds are comfortable. The kitchen has anything you could need. We loved it.
Also, the location can't be beat. One block from the Montparnasse train station, not too far from the Jardins du Luxembourg -- great place to run or relax after a long day of seeing sights -- and not too far from the Eiffel Tower and other sights. We walked, took buses, enjoyed the metro and felt so lucky to book this place.