Extremely rude staff with zero professionalism in anything. Most of them don't do anything except walk around the airport greeting each other and laughing. When you arrive, expect long queues at immigration before you have to wait for at least 2 hours (once I had to wait for 3.5 hours) for your luggage to arrive to the belt.
It's not organized at all. A veritable labyrinth of an airport for a major airport of a big country. Everything is simultaneously overpriced and looks cheap.