Pros:
1. WU Vienna has one of the biggest and most beautiful campuses in Vienna.
2. It has a lot of teaching faculties and buildings, all of which are on campus.
3. Variety of English and German taught programs.
4. Variety of courses and specializations to choose from.
5. Fast and accurate support from allumni, peers, professors and program representatives.
6. Variety of options for exchange semesters, summer universities, pre-semester studies, internships and free electives.
7. Many options for exam retakes.
8. Courses are both theoretical and practical.
Cons:
1. As there is a huge number of students, there is a competition for course registration and sometimes you may end up not being able to apply for the courses you want/need to take, which can prolong your studies. (This goes more for the German Bachelor programs).
2. Workload sometimes can be overwhelming, but other times its pretty chill.
3. In the German Bachelor programs it may be hard to make good friends, as you meet new and new people with every course and afterwards you may end not seeing the same poeple again.
(But this depends mostly on you and the peope you meet, I guess)