The swedish study environment is really layed back and therefore really enjoyable! All of the teachers and course administrators were really friendly and most of them well organised. We had a good mixture of theoretical classes and labs that provided some experimental understanding of the topic that we just discussed.
Compared to my home university we had a lot less courses and therefore a lot more free time for self studies or to explore stockholm which is nice if you are on an exchange!
The way the courses are held in stockhom is really different to my home university where we have a few hours of each course every week. I found the system at KI really nice because one could concentrate on the topic and complete it after a few weeks with an exam. It was definitely really nice not to have all the exams in one go at the end of the year.