The University of Vigo is, in my opinion, one of the universities with the best study environment in Galicia, among those I have had the opportunity to visit.
The campus called CUVI, or, “the campus on the mountain”, is very pleasant, with a professional-sized football field and an athletics track, as well as a centre with restaurants and other services that can be enjoyed by students.
As my experience was brief, as I only stayed for 6 months, I cannot speak more broadly about the subjects or courses. But all the ones I made were really good. The teachers of the 4 courses I signed up for really knew what they were teaching.
The negative points may have been the difficult locomotion to the campus, as it is too far from the city and a lack of reception for new students/exchange students, which make it difficult to adapt very quickly.