Recently, I flew with Wizz Air from Oslo Airport (OSL), and overall, the Wizz Air OSL Terminal experience was quick and efficient. The main terminal at OSL is tidy, modern, and somewhat easy to navigate; it's from here that Wizz Air operates. Check-in was easy using several self-service kiosks, with personnel on hand to help if needed. The security lines moved quickly, and the staff was both polite and competent.