Great location for the apartment. It was very close to a train and metro station and in a neighborhood with lots of restaurants. It is also only a short walk to many of the city's top attractions.
I found the apartment cozy for one person, so if there are two people you might feel a bit tight. Otherwise it was clean and well stocked, including with an iron I was glad to have.
Keep in mind that it is on the 6th floor (7th US) and there is a ladder to reach the bed. I found the loft and the view of the Paris rooftops to be charming, but it might not be the best for someone with even mild mobility issues, or if you just don't want that much effort to get home every day while sightseeing.
Daniela was prompt and easy to communicate with. She even offered some nice recommendations at check-in.
Overall a great value for a great location in Paris.