Such a lovely, cozy little flat! Perfect, quiet location close to the metro and with a grocery store right across the street. It's very easy to remember how to get back to it, too, as it's at the last stop of a metro line. Be aware that the flat is very tiny — the lofted/lift bed takes up about 90% of the main living space when it's pulled down, if that gives you a picture, and the kitchenette would really only be functional for quickly reheating food or making really quick, small meals. But for one person, *maybe* two people, only intending to use the flat as a base camp to sleep between days out exploring the city, it's absolutely perfect. (You're in Paris! Get outside!) The bathroom is very stylish and included plenty of extra towels and even bottles of shampoo/conditioner/body lotion. I didn't use the washer/dryer but loved that the amenity was provided. I was checked in by Louis, who was incredibly friendly and detailed in his welcome tour. I didn't end up taking up Marc & Rumi's very hospitable offer for their driver to pick me up/drive me to the airport for a reasonable, flat fee, but appreciated that, as well.
The only other things I'd note: because the flat is small and does not have air conditioning (as with the vast majority of flats in Paris), it can get a bit warm during the day, but the large windows open wide and it's easy enough to get a breeze in. I was visiting in the fall, however, so I can't speak to the comfort of this place in high summer. Also, the light in the hallway outside the flat shuts off automatically and is not motion-activated, so when leaving or returning to the flat, you may have to grope around in the dark for the switch. It's not far, though, so not a huge deal.
All in all, wonderful value for money. I'd highly recommend Marc & Rumi's little apartment for single travelers or light-traveling couples :)