We loved our stay in Valérie's apartment. Perfectly situated between Les Halles and Le Marais, it is a prime location, especially for a first-time visitor to Paris. We were able to walk to all of the places we wanted to visit. Note that it is a 4th floor (not including ground floor) unit, without an elevator. But this makes it quiet and peaceful. Unless you have health problems preventing you from climbing steps, it is very much worth it. Highly recommended, if you want to stay in central Paris.