Very nice apartment, really cosy (I think for 2 or max 3 people). Also the decoration is nice.
The location is very good, very calm for Paris but many restaurants, bars and supermarkets nearby.
The sofa bed is not very comfortable to sleep on but if you don't have problems with your back it should be fine.
You find everything you need to cook own meals in the kitchen. The bathroom is very small, but it was fine for us.
All in all a very nice place to stay in Paris :)