The appartment is literally in the center of Paris, and even if it's really small it has everything you'll need if you're gonna spend a few days there (shower and wc, kitchen, bed, towels, a detailed guide from Stephan and Marina...). I really reccommend it if you travel all alone or even with your couple or a close friend. You can go everywhere on foot (I haven't used public transport because I really didn't need it). The only problems are the cleaning a little, the noise during the night and specially the light of the street, but I have a lot of problems when it comes to sleep and it was no big deal actually. It is well located not only if you want to visit the city but also because it is surrounded by all kind of shops, bars and restaurants. I really enjoyed this place and the hosts were really nice.