We stayed at Alexandre's apartment for 3 nights in late August.
Pros:
Spacious for Paris, newly renovated, modern and clean.
Tastefully decorated. Nice bath room with strong water pressure and hot water.
Alexandre is very flexible trying to accommodate the guests who arrive way too early on overnight flights.
Metro stations: Republique (6 min. walk), Arts et Metiers (10 min. walk)
Close to good restaurants and grocery stores
Cons:
Unattractive, dark entrance way leading to narrow stairs on the way to third floor.