I don't want to diminish the apartment itself but it's only fair to begin by mentioning how much we loved this neighborhood. It was beyond perfect for what we wanted. It's a little off the beaten path away from the tourists, but still within easy walking distance of le Notre Dame, the metro, etc. and there is a gelato spot and a crepe stand on either side (what more do you need to hear?)There is an adorable courtyard almost immediately as you step outside, surrounded by great restaurants all around that were casual and easy to navigate during the day and a bit busier at night. The Rue de Mouffetard at night is a long, thin vein of pure energy full of fun young people and lined with a variety of bars, restaurants and other delicious local treasures... Paris has so much to offer but we would have been happy to spend most of our nights there. There are also two metro stops within short walking distance.
As for the apartment, it was a great experience as well. It was medium sized (which is a lot of space compared to the other places we stayed in Paris), clean, comfortable, and had a semi-private balcony that overlooked the interior courtyard of the building. Laurent was the consummate host, offered useful tips on where to go and made sure we had everything we needed. We loved our time there and highly recommend giving it a try.