Karine's place is right at the heart of the Marais. It's about 100 steps up the narrow stairs, but that fact is clearly disclosed in advance, and the view from top is worth every step. The apartment is spacious, cozy, and well lived-in. It has a lot of character and authenticity. Everything was as advertised, and check-in / out was super easy. Couldn't have asked for more and would stay there again.