Study system in Germany

It has been a month since I started the courses here. Looking at the system, it is somewhat like the one in Romania. But only when it comes to its calendar. Otherwise, there are differences. Biggest one is that you can choose your courses. This is something that I missed back home. And you can choose as many or as few as you want. If you feel you can do more, you can just pick another topic.
The first month is for course hunting. Meaning you don't need to decide what course to take. You go course-shopping and decide afterwards what you like or dislike. I did this with a course of Automata theory. I wanted to do it, but after only 3 lectures I gave up. It was something else than I wanted to study.
Another difference is the use of the Internet. All the courses or study related things are available online. The registration for exams is also online. And the teachers are much more helpful. They have office hours when you can ask anything related to assignments.
The seminars are more interactive. Every student gets a paper and prepares a presentation for that paper. This way, at least he will understand one thing very well and hear about the others.
And the best thing is that the teachers clean the blackboards. :)
Still, the things tend to get pretty chaotic especially in the practical courses. But I can live with that. At least school ends in July.
However, I have heard that not all universities have the same system. But I can only talk from my own experience.