Lovely old building and a very charming parisian studio. The location was perfect with many little places to eat and shop nearby, without it being as crowded as near all the attractions. We loved Au Port Salud with live piano and great food and service, but also the little crepes shop on Rue gay lussac (right where you cross from rue Saint jaques).
We walked everywhere from there, Eiffel Tower, Champs Elysees, catacombes, Mont Martre, also you can see the spear of Pantheon from the building, beautiful Jardin Luxembourg is super close (we took our croissants and coffee and sat their every morning) and Notre Dame is nearby too.
Perrine was awesome and very easy to communicate with, and it was no problem that we arrived late. Following Perrine's direction, we took the Orlyval from Paris Orly Airport to Antony and Rer B from there to Luxembourg station - super easy!
Only reason we give 4 Stars and not 5, is that the fold out futon is not very comfortable (the top bunk is better but smaller) - we would still go back and stay again and recommend it very much, though! Thanks Perrine, we will send more guests your way :)