The apartment is in a great location, one block from the Seine and then across the bridge to Notre Dame. The apartment is very nicely decorated and the bed is firm. The bathroom is very small but functional and the shower water pressure and temperature is very good. The apartment is great for a couple, but three would likely be too cramped.
The neighborhood is lovely. If you stay here, an evening at Aux Trois Mailletz, a bistro with live music (singer and piano player) is the most fun place to hang out for an evening.
There are three excellent shops for bread/bakery, cheese, and wine at the intersection of Blvd St Germain and Rue Lamarck. It’s a 3 minute walk from the apartment