We have truly enjoyed our stay at Paul's and Marie's place! The apartment is small yet very cozy, with every detail taken care of to make you feel like at home. The hosts provided some coffee and tea, as well as some soap for dishwasher and washing machine, which was so mush appreciate as we did not have to bother to find all these things in shops, but focus on enjoying Paris :)) Last but not least, the apartment was very clean, which was especially important for us since we travelled with child.
Location is great - close to metro station (though some attractions e.g. Louvre are in walking distance, around 20 min), with lots of cafes, restaurants, bars and grocery shops around. You can also find a tourist Big Bus stop just at the corner. Paul and Marie also provided some advices for bars/restaurants in the neighbourhood, which we found very thoughtful.
To sum up, I totally recommend this place!!!