To me, this school represents a great opportunity for both American students who wish to study abroad, and Norwegians looking to study in the US.
Although I myself is one of the later, I have made a lot of American friends here, my room mate being one of them, and I hear nothing but praise coming from them. In fact, most of the ones I've asked said they wished they could stay for a little longer, despite missing their families at home. With ACN being such a small school compared to most American universities, we naturally have a tight and welcoming student environment. Whether we're studying, partying, traveling or killing time, we've always had the option of doing it in solidarity.
The small classes also seem to spark the teachers. Going from a school where they host lectures for hundreds of people at a time to classes where they have 20-40 people seem to bring them back to their teaching roots, allowing them to create a real student-teacher relationship. And although there will be new teachers every semester, I can honestly say that the teaching staff at ACN that I've encountered represents the best educators I have ever had the privilege of learning from.
To summarize: If you're curious about studying abroad and think that Norway might be the place for you, come to ACN! In my experience it was the best choice I could have made, and I wouldn't hesitate to recommend it to anyone.