My experience at ISAE-ENSMA is bitterwise. I really liked the academic approach: tons of lab practices that allow you better understanding the physics behind the theory. However, the location of the University is not the best (especially in COVID period). The university is very isolated, which doesn’t allow you enjoying the city life unless you life at 10 km (30-40 min of bus if you are lucky).
On another hand, the student life is really good there: many associations and clubs to take part of so, in the end you cannot get bored. In what refers to exams difficulty, I find them very affordable.
In general lines, I recommend coming to this university but, if you have a car, better!