I had an amazing time at Vincent's place. The location is perfect, you will find plenty of bars and restaurants around the corner. It's also nearby the area of Montmartre and walking distance from the Sacré Coeur, and very well communicated with the rest of the city.
The communication with Vincent was very good (via Whatsapp), and he was very flexible with the time at the check-in and check-out. The flat itself is quite small, but in my case (I was alone) was more than enough to enjoy my weekend in Paris. Overall, very recommended!