This apt is very well-located. So close to the Chatelet-les halles station that you can take the RER there directly from the airport and just walk to the apt from the station. How easy. Just make sure that when you exit the station, you take the St. Eustache exit which will take you to the Rue Montorgeuil. The apt is on a quiet side street off of Rue Montorgueil, which has great bakeries, patisseries, grocery stores, cafes, and restaurants. It's the ideal picture of the kind of bustling, lively Parisian street you expect to see. At the same time, the apt is quiet because it is off a side street off this road.
The apt has everything you need. It is more like a studio than a one bedroom, but has a kitchen area and a bathroom on one end, with a washer. We were pleased with the apt, perhaps the kitchen and bathroom could have been a little cleaner, though.