We had a great time staying at Frederic's apartment. It is located in an attractive part of Paris which is not overrun by tourists (like us) but full of Parisian flavour, and easily accessible by metro. Frederic was very accommodating about changes we made to our timing. Although he could not meet us in person, his friend did and she was very welcoming and helpful.
The apartment is comfortable and stylish, a great place to come back to after walking around town.