Pierre's place is a wonderful space and location for a couple to stay in the heart of Paris. This is a space that Pierre (a lovely gentlemen and gracious host) has decorated and treats like his home (which is right next door, though he'll give you the level of interaction that you desire). This is not an apartment that he purchased to be an Airbnb - this is set up like a guest house extension of his own home (in the best of ways!). Between the comfortable living room, beautiful bookshelf wall, rustic furniture, and big windows opening to a lovely courtyard, my wife and I were able to have a very cozy and happy nine nights here. The bed is comfortable and the bathroom not cramped. The kitchen is small but perfectly ample for an Airbnb.
The location can't be beat - you spill right out onto Quai des Grands Augustins, just a couple blocks from Notre Dame and an easy walk or train ride away from anything you want to see in the city. The Latin Quarter is just around the corner and a perfect short walking distance to grab breakfast or late night fare.
I could go on but basically - if you are two people (three might work but it'd be cozy) looking for a feels-like-home stay in the middle of Paris with a lovely host, look no further.