Overall my stay was great.
Location. Perfect for me, just a few away to Jardin du Luxembourg and to the metro station. Close to restaurant, supermarket, laundry place. And also to the main attractions: Notredame, the Sena, museums, etc.
The studio. A kitchen and a bedroom. The kitchen is well equipated. The bedroom is nice. There is a shower room inside, but the toilet is outside the studio. The studio is on the sixth floor and there is no elevator, so consider that.
The view. Since the studio is on the 6th floor and in the middle of Paris, it has a beautiful view.
I would stay again at Rafael's.