In the evening rush (around 7 – 10 PM) prepare to wait in 5 separate queues, each of which is long and slow. In order: (1) your airline check-in line, probably similar to other airports where local personnel handle few flights, thus being extremely slow. (2) Go into the almost-secure area (battling your way through hundreds of onlookers) and into the Departure Tax line for purchase of same. Then into a small line (not counted in the five) where some guy inputs your tax sticker and you go through a turnstile. (3) Wait an interminable time to have the local police check your immigration card (issued upon arrival) and see if you are wanted for something or other. If really busy, the line to leave the desk wraps through the other desks resulting in a huge, unmoving cross-blocking situation. (4) Finally conventional immigration which, because of a dozen lanes, seems to run a little smoother than the others but the you run into the huge backup for… (5) …physical security where they are anal about carry-on bags. Once through, it is reasonably pleasant but this process takes upwards of an hour or over when really busy (which is nightly). They say to arrive 3 hours in advance of your flight … that is marginal.