Recommend this lovely apartment without hesitation. It is a top floor, roof space apartment with fabulous views across the Marais from the windows (which are typical Parisian windows opening out, so you can sit and almost feel you are on a balcony). It is small, but not tiny, and the light decor gives it an airy feel - we found there was plenty of space for two of us. We prepared breakfast and lunch in the apartment on several occasions, and the small kitchen is well equipped. It is also a separate room from the living room, which is nice (the living room can also double as a second bedroom with a pull out bed).
Brilliant location a few minutes from Isle St Louis, Bastille and the Marais and some of the lovely but lesser known delights of Paris such as Promenade des Plantes and Jardin des Plantes. Very easy to walk to main tourist areas around St Germain & Notre Dame too, but in a quiet area away from the busier tourist areas. If you don't like walking, the Metro No 7 line is literally just across the road. There is a supermarket 5 mins walk away too.
Gaia was easy and quick to communicate with and Fernando was waiting in the apartment as arranged - all very easy. We had no problems at all.
It is the perfect apartment if you want to pretend you are a Parisian for a few days!