It was overall a very good experience. I have written an extended article on my life as a student which can be found both on ResearchHUB website and in Medium

I would not say a shock since I already had an idea about how Norwegians live but I was surprised about how good their English was, which in turn was not a very ideal situation for me since I never felt the need of learning the language during my studies.

Foreign students should be able to cover all costs within 750-900USD per month

Yes

Someone who is planning to study abroad should gather as much information as possible from the internet. And I highly recommend to have a chat with someone from the destination country or the university if possible. Thus, it is possible to get some insights that are not available in the internet.