Firstly, I would recommend to fill up your schedule with other activities, even work in domain, because there is a lot of free time and the knowledge you acquire only at university is far from enough.
Unfortunately, the exams are pretty hard, at least at Economic Informatics, but not impossible.
The teachers are sometimes way too exigent considering their teaching activity.
This university leaves entirely up to you the success in the domain you have chosen.
The best advice would be not to expect amazing and interesting academical activities, but to get involved in other stuff and work hard on your own.
My overall opinion is ok, it could have been a lot better.