We stayed in this place during last week of April. One key highlight is LOCATION! It is very central and many of the major attractions are within walking distance - Louvre, Palais Garnier, Pompidou, .... and several others. Châtelet les Halles, which is less than 10 mins walk, is a major hub for any train connection in and around Paris.
Communication with Alexandre before and after booking was great- clear and precise. Check-in was smooth. We arrived late around 10 pm but Marc was there to welcome us and provide all the useful info about the flat and also gave us helpful tips about Paris. He was always a text or phone call away. There are many restaurants and bars in the vicinity.
Highly recommend for two or three people. If we go back to Paris, we will definitely stay at the same place.