It's a small apartment but the location is amazing. If you're spending a few days there, first go to the Musee de l'Orangerie, where the lines are short, and buy a Carte Blanche. Use it every day to skip the line at the Musee d'Orsay. If you can afford it, book a lunch or a dinner at the neighborhood Atelier de Joël Robuchon. Get your croissants at Patisserie Eric Kayser. Walk to the Louvre, Saint Germain, and Quartier Latin.