We had a wonderful stay at Patrice's flat in Le Marais. The location is fantastic... about a block from Hotel De Ville, it's very close to major attractions such as Sainte-Chapelle and Centre Pompidou, and has many metro stops nearby to access farther flung attractions, such as the Eiffel Towers. We spent our 3 days mainly in Le Marais, which is full of charming cafes and great shopping (particularly for vintage clothes and antiques).
The apartment is a second level walk-up in a pretty large building. Two keycodes are required to enter the building, and there's a key for the apartment itself. The flat is made up of 2 rooms: one living room / kitchen area (no dining area), and one bedroom which contains a king size bed on the lower level and a double in an upper loft. There's also a double couch bed in the living area, so there are 3 beds total. Our family of 4 was a little cramped in the space, but we knew that it would be tight beforehand.
One major bonus with the apartment is that it has air-conditioning... it wasn't too hot during our stay (temperatures in the high 70s F) but it was still nice to be able to cool down the apartment in the evening before bedtime. On hotter days the A/C would be absolutely necessary to sleep!
Our check-in was a little confused--Patrice provided us with a number to text when we arrived at the train station, and we did try to text. However we learned afterward that we needed use Whats App (which we don't use). And we didn't know that the text didn't go through until we arrived at the apartment. So we had to wait about 30 minutes to get into the apartment; after that everything went smoothly. At checkout, we arranged with Patrice to have a car take us to the airport, which was convenient and smooth.
Given the size of the apartment, we didn't use it for eating, except for snacks. But we were in Paris to enjoy the cafes, so no problem there!
Overall the apartment served our needs perfectly, and we would be happy to visit again if we can get back to Paris! Thanks Patrice!