As an international student, what stood out for me was the diversity of the students, so you are sure to not stick out like a sore thumb.
For the classes, they were really good. Having been taught to in English by French professors, it was really exciting and also shows how much depth the professors have (not only being able to teach in French but also English). Of course, the lectures delivered were top notch, too.
Also, I enjoyed affordable on-campus accomodation.