Don get me wrong, its a great university and the Vera campus is great but in my time there, I didn’t see many international students. It might be different for other faculties but in the ETSID, there is only one bachelors program taught in english, therefore the lack of internationals.
Other than that, the university offers a great deal of top of the notch laboratories (specially the combustion and aeronautics ones) and there are many student teams (hyperloop, formula student, azalea…) to further improve your experience there.