We had such a great time at Sophie's apartment, even we didn't spend much time in there. Sophie was very nice to us and made us felt like at home since the first time we met. The apartment is big enough for 4 adult people, very cosy and comfortable, full of details and all gadgets you could need.
I can tell the same for the location; Pigalle is everything but dangerous. We loved the streets, the bars, the people, the lights, the restaurants (thanks for your recommendation "La marmite")...nothing bad can be said.
I wish all my airbnb experiences could be the same.
Sophie's place is the best way to begin visiting Paris.