We stayed in the apartment for a week. As you can see in the pics, it is very small, but with all the commodities you may need. It is very clean and well conditioned and its location is perfect to enjoy Paris. Maybe if you are not used to futon style beds you may find it hard to rest, at least the first days.
Monic is very kind, she gave us a lot of indications and good advices about Paris. If you are looking for a nice place to stay and you will be most of the time out in the lovely streets of the city, it will suit all your needs.