Fantastic location if you're young and looking for restaurants and nightlife. Jean is very flexible and communicative: we arrived and left at some very odd hours, and thus never actually met him; but he left detailed instructions and was very responsive.
We didn't spend too much time in the apartment itself, but it was charming and the building is very secure (you'll be behind two different doors that require codes for entry). It is a smoker's apartment, so if you're bothered by smoke smell take note.