I spent 2 nights at Christophe and Valerie's apartment.
Their apartment is ideally located in the 5th arrondissement of Paris. I really like their apartment, which is lovely decorated. You will find everything you need in the neighborhood (grocery,proximate metro station...)

Christophe is a really nice host. He was really friendly and helpt me a lot while I was there (bus advice, printing an important paper). I was free to use everything, as I was home. If you are looking for some privacy, you will find it here.

I would highly recommend you to stay here if you are in the city.