My parents and I spent 2 nights at Adrien & Luka's place, and this is the perfect location for sightseeing! You are a very short walk to The Louvre, Jardin de Tuilieres, and Musee d'Orsay, and with tons of good restaurants and fun shopping around as well (we particularly enjoyed eating at Au Pied de Couchon, about a 3 minute walk). The apartment itself is clean, quiet, and with enough space that 3 people felt very comfortable hanging out as well as getting ready in the mornings. It was also reasonably priced both for the quality of the apartment and the location.