EUR has a nice, well-constructed campus and offers the opportunity to meet a people from all over the world and get acquainted with diverse cultures and customs. It has the facilities that enable you both to study hard and have a good social life.
I also liked that the uni had a wide range of societies you could join + many opportunities for trainings, additional courses, tutoring and a chance to study abroad for some time.
Most of the lecturers were competent. However the content of the material and the preparation of some of the tutors might have to be improved a bit.
Overall, I had a positive experience at Erasmus and have an excellent opinion about it. I would definitely recommend it.