NCL is a easy airport to fly through. You should be in the lounge within 10 mins of checking in. Not a EK lounge but I find it better and less crowded then the lounges in other airports. I don't know what 777 they send to NCL now days But I assume the flight should be the same as other 777's other then the new ones at STN. I once did Check-in to airplane seat in 8 mins. Its never busy at that time of the day.