Nice place to do your phd studies if you get an offer to work for an EU-funded research project. It can give you the opportunity to collaborate with a variety of EU companies, to travel to international conferences, and to make good contacts. Depending on the field of studies, you can get access to highly equipped laboratories.
Cons
Moderate or no salary for phd opportunities (depends on the school/supervisor). Infrastructure in some buildings is outdated and needs improvement.