It is small but it has everything a luxury hotel needs. Rooms that are large for parisian standards and quiet (!) a lovely restaurant serving good food (a find for lunch in itself) and staff that could not be more lovely and caring in one of the larger houses around the corner. We have tried many hotels in Paris and this will be one of our favs.
The only small issue is that there is no gym. A small room is available for use by the hotelguests in a nearby hotel but it is very basic. They have a pool too however.