A lovely little flat that we thoroughly enjoyed our stay in. It is located in an amazing place, with many bars and restaurants nearby as well as the beautiful Sacré-Cœur being a short walk away. The flat was a perfect size for two people and despite being so centrally situated it was very quiet. There was also two metro stops within a 5 minute walk (Abbesses and Pigalle) which provided easy travel into the heart of Paris.
Only complaint is that when we arrived the key was not located in the keybox, so we could not get into the flat. The hosts were very apologetic for this and were professional in getting this sorted but we had to wait just over an hour to get the key brought to us. Whilst this was fairly fast (and they sorted it as quickly as they could) it was very inconvenient having to wait. This was made worse by our flight being delayed over 4 hours so we did not arrive at the flat until after 10pm. However, considering it was so late, the issue was resolved pretty quickly.
Overall, we would definitely stay here again as I imagine the situation with the key was a one off. The flat and area is lovely and I would highly recommend it.