About location

Duguay:

Metro: Notre Dame des Champs, St Placide, St Sulpice, Rennes.
Bus: 68/96/91/95.
Five minutes walking distance from: Museum monument as Luxembourg garden, Senate, Odeon Theater, St Sulpice church.

Rousselet:

Metro: Vaneau, Duroc , Sèvres Babylone.
Bus: 28/70/82/86/89/92.
Five minutes walking distance from: Bon Marché store, the famous Epicerie du bon marché, Lutetia Hotel.
Ten minutes distance: invalides, Rodin Museum.

Both are also very near from Montparnasse Railway station (TGV to west France, Air france Bus to airports).