Arriving can be nasty, unpleasant, crowded. Though it really has improved. Relax into it, you
will get through!
Leaving the place is fine - just don't fight the system. It works: you don't need to understand it or help fix it
.
I have never been asked for a bribe greater greater than a ball-point pen - even then it was a low key, no pressure "you have so many of these, my kids could use one" in the personal search cubicle.
The TAAG lounge is perfectly OK - it can get crowded, but just about everything you might expect from a lounge is there.