I would highly recommend this host and this flat. We were very happy with out stay here. The flat itself was very clean and tidy when we arrived. It looked exactly as the pictures in the profile showed.
Communication before we arrived was prompt and helpful. We had no reason to get in contact during the stay as everything was fine and all the information we needed was in a short instruction manual in the flat. There was also someone there when we arrived to let us in and show us around. The host was very flexible and accommodating with our requests for late check in and check out.
The flat is perfectly located for sightseeing and there are loads of good restaurants close by. It is also very close to St Germaine Metro station which is on the same line as Gare du Nord where the Eurostar arrives.
When we go back to Paris, we will definitely try and book this place before looking anywhere else.