The problems with NCL as an airport don't so much stem from the lack of facilities (with the exception of limited stands for summer nightstoppers), but that everything has a tendency to arrive and depart more or less together. For example, the ramp is deserted by 0800 and stays that way until after 0900 when everything starts to reappear again until around 1100 when it is deserted once more. Between 1600 and 1700 virtually all the stands on the pier are occupied, and this is perhaps the single busiest hour for the airport each day.
This surge of demand for all the various services provided by the airport and ground handlers is where the problems lie. A smooth steady flow of aircraft could be managed without difficulty, but none of the service providers have the capacity to cope with everything at once. As things stand, there are large numbers of people sat around for much of the day with nothing to do, and then running about like idiots when the a/c are in. This causes problems not only for the ground handlers, but for the airport fuellers, coaching, disabled pax handling, as well as exposing the physical limitations of the buildings which are badly designed and totally unacceptable for the pax numbers now using NCL.
I know that the airport has plans in place to attempt to address these issues, but I don't think they are able to keep up with the place of demand. The airport's business is growing much faster than its facilities, and it will very soon reach the point where it will damage its own potential by being unable to cope and pax will turn away if they have any alternative open to them.