Location, location, location - can't get better than this this. The best neighborhood in Paris at your doorstep, with a grocery right across the street. beds are comfy and the flat is huge. We were there during hot weather and with the windows open, a breeze cooled off all the rooms.
for non-city people: just be aware that this is a courtyard apartment, and while you will not get street noise you can hear neighbors. But if you are used to Paris flats or any city apartment, this will not be an issue - it wasn't for me. Julien is a great host and the flat is large, roomy and equipped. Enjoy!!