The apartment is much nicer then it looks from the pictures. Its spacious, cosy, with long balcony and with big bathroom. The street is quiet, so no noise will interupt your sleep. Bedroom bed is comfy, I prefer softer mattress so I guess it was rather soft (perfect soft not too soft) because I slept very good :) Around the corner is grocery and nearby are lots of places where to eat. If you dont mind to walk on the nice Paris streets then the apartment is quite close to sightseens. If you are not a fan of walking then you can use a metro station what is also close by. Gare du Nord train station (its the connection with the airport) is about 10 min away by foot from the apartment. We also visited Disneyland and then we used the Les Halles train station (around 25 min from the ap by foot).
Def will recommend this apartment. Enjoy your stay there :)