Overall it's a very nice train station. It is close to the bus station, and there are kiosks on each end of the station. There are two exits, one towards the convention center (right when you exit the platform) and an other towards the taxis and buses (left). There are also a grocery store and other places you can eat. There are toilets, but you have to pay for them. There are a lot of ticket machines, that makes it faster to buy your ticket when there are a lot of people. It takes 10 minutes to Oslo, and around 15 minutes to the airport by regional train (72kr), which is A LOT cheaper than the airport express "Flytoget". read more