I studied at the Sapienza University of Rome. I think it is one of the best Italian universities, among its strong points we have: prestigious professors and a super active student community. the negative point is that there are many students and sometimes they are difficult to follow everyone. Beyond this I recommend the university.
I studied in the economics faculty and I must say that it is really well organised. there are numerous study rooms, laboratories and there is a canteen which allows students to eat good food for a few euros. Sapienza is today a point of reference in the Italian community for capable young graduates!