The apartment at 173 Rue Grenelle, and its owner Louis-Marie are just delightful. Let me go over the reasons why we feel this way. First and foremost, its location. You are basically 50 meters from Rue Cler where you can have your chocie of restaurants and bars, supermarkets, cheese shops, Boulangeries, ice cream shops (Amorino was our favorite), and fruit and vegetable shops. Truly this location cannot be beaten. Our favorite restaurant on Rue Cler is "Le Petit Cler". Extraordinary food at reasonable prices.
Second, the apartment is clean, and the resonsiveness by Louis-Marie and Helene (the apartment manager) can only be described as exceptional. In addition, the bed is large by French standards (it is a queen bed), and you will have a solid night's sleep.
On the down side, the apartment lacks significant storage space. It was hard for us to find a place for our luggage; the only storage space available was a bureau in the bedroom. This meant that our bags sat on the floor occupying precious space.
Overall though, this was a great apartment at a spectacular location.
One last thing, the shower was smaller than we expected. If you are a large person (6 ft, 230 pounds) you will have a tough time taking a shower.