The only time I wish I had purchased Club Mobay, was when we departed on a Saturday afternoon during the peak season. On that day, the line to get into the security hall stretched the entire length of the airline check-in counters. I was seriously worried about missing our flight, even though we arrived 2 hours early!

Otherwise, we typically don't encounter long lines at immigration upon arrival and departure typically isn't too bad. However, We usually make it a point to travel on weekdays (preferably Wednesday) as the airfare is is generally cheaper and the airport is less crowded.