Hôtel Le Senat is a lovely hotel centrally located (but quiet) in the 6th, a short walk to transportation, with the Jardin Luxembourgs and several useful places to eat nearby. The public rooms are very stylishly decorated and comfortable for a drink or to read if you're waiting to meet someone (or for the light breakfast if you don't want the slightly larger breakfast in the lower-level breakfast room). The staff was very professional and helpful -- making reservations, ordering taxis, providing information, and even providing a basket of ponchos on a rainy day. There seems to be room service only for breakfast, though "exterior" room service was available for other times -- basically ordering takeout. We upgraded to a deluxe room, which was still a bit tight but roomier than many Paris rooms of the same price. We would definitely stay there again.