Sabri and Ivana were great. Very communicative far before the trip. Easy setup for the stay. The best thing about this place is convenience.
This was a great home base to explore Paris. It was near three trains that were integral to go to most tourist destinations in Paris. It was also great for just walking around Paris, as my fiancee and I did most of the time (for example, the Eiffel Tower, Mont Parnasse and Notre Dame are all an hour or less away if you don't stop). Often, walking was the same or comparable to taking the metro.
The apartment is exactly as it looks in the pictures. It's a cozy studio. If you set your expectations you won't be disappointed. The only weird thing is the bathroom: the toilet is in front of a washer and so our long legs had to sit at an angle. Also, the bathroom is designed with a shower that has no position, so the floor gets wet and can run to the door. That's more an issue of design with the building, but good to know when you choose.
Otherwise, it's near a few groceries, a pharmacy, tons of cafes and restaurants, a lot of nightlife, tons of buses and more. It's also very reasonably priced. Take this for a great stay in Paris.
(Also, if you want a filling breakfast American or UK styled, I recommend Hotbelly, which is ten minutes or less away, walking. Fantastic food, great staff. The cafes usually have coffee, a croissant or light food, but that place is filling).