it's not a 'French McD' thing. There are also McCafes in Berlin and I believe lots of other places, they are not regular McDonalds and they oparate aside existing 'normal' McD restaurants. The one on Kurfurstendamm in Berlin is a friendly cozy place filled with books and vintage pictures, nice place to sit for a few minutes just like any other cafe. Nearby there is the classic burger-smelly McD with long queues.