For someone who knows what they're getting into, Sylvia's home is a fantastic find. It's huge compared to many Parisian hotel rooms of similar price, and the neighborhood it's in is absolutely charming — albeit distant from a lot of tourist destinations (though it's right next to a metro stop). If a.) this isn't your first time in Paris or b.) you want something that completely matches Airbnb's tagline of "live like a local," this is definitely your spot.
I'll definitely see if Sylvia's place is available next time I'm in Paris.