Elegant and efficient single-terminal layout; friendly and helpful staff they even provide those transparent plastic bags for carry-on liquids for free. Huge Duty-Free area (there's even one at arrival where you claim your baggage) plus cafés and snack shops; clean restrooms. Good traffic connections (Express train local trains several bus companies and taxis). It's all a bit expensive but that's what you have to expect in Norway. Unfortunately the air traffic seems to outgrow the building; they recently removed a very comfortable resting area to make room for new offices.