The apartment is pretty small, but it has a small kitchen where you can cook, the shower is good and full 2 people bed. Be ready to climb the stairs to the 6th floor. The only drawback is that is can be noisy at night on Friday or Saturday.
Otherwise the location is very good, walking distance to Le Marais and even Montmartre, a supermarket and a lot of good cafes/bakeries just around the corner.