This apartment was the perfect base for our week-long stay in Paris. It is very centrally located near Les Halles, and is in a very convenient location from which to explore all of central Paris. it is also easy to get to from the airport, as the express RER B station is walking distance from the apartment.
The apartment itself was very comfortable, with two good bedrooms (one 'interior' with windows into the main space), a well-equipped kitchen, generous living room, nice bathroom, and a compact washer/dryer. As the host mentions, it is in a lively area, with lots of great restaurants nearby - bakeries as well for breakfast - so there is street noise at night, but the windows are good and with them closed the noise did not disturb us. We went in late August, there are three tower fans for cooling the space which are quiet and work well. A supermarket (Monoprix) is very close as well, which was convenient.
The host was very nice, answering all of our questions prior to arrival, greeting us and making us feel welcome when we arrived, and also promptly responded to a question we had when there. The apartment was in great shape when we arrived, we felt at home at once!
I would certainly recommend this apartment to anyone coming to spend time exploring Paris!