Nicolas' flat is pretty much exactly as pictured, which is to say that it's a clean, modern, efficient, and cute apartment in a great neighborhood. Very close to a number of metro and RER lines (you're about a 5 minute walk from the nearest stop with an airport RER line), Centre Pompidou, a number of great galleries, a G20 super market, and a host of bars and restaurants, the location is pretty perfect. Everything was as pictured and described: it's small, but highly efficient with it's space, very well decorated, and has lots of amenities. Although we ate out a lot, we were totally able to cook for ourselves a couple of times, as the kitchen had all the equipment. The apartment got a little hot during the day, but once you open the windows and rev up one or two of the fans Nicolas provides, it'll cool off quickly. Nicolas was flexible with our check-in time, and was super friendly! He's also kept a guest book for a few years now and has encouraged visitors to list suggestions for things to do in the neighborhood, it's filled with great suggestions. Overall, the apartment is wonderful, and the listing is very honest!
Other things we discovered about the apartment that might not be 100% clear: the bed is a queen sized mattress, there is a pod espresso maker, the washing machine is also a dryer, and the water will get very hot!
As long as you're okay with a 5th floor walk up, this is a great rental for the price.