GOT lounge is horrible in terms of food. Sometimes you can make a decent nacho plate but often also only sandwich ingredients. ARN is multiple times better.
OSL: Drinks vary. Strong alcohol in premium part (business, sapphire, emerald so what's left?) before 6 pm (?) when it closes. Then strong alcohol moved to normal part. Food poor, i.e. wraps, soup, salad, potatoes soaked in some sauce, cheese, sometimes an ok mudcake. Wifi free, requires pwd (lounge2016).
CPH Apartment: Food varied, typically cold salmon, eggs, and other sandwich ingredients, soup. Beer, wine, strong alcohol, but not the entirely cheapest brands. Wifi free and good, I think it requires a password. Airport wifi also ok.