Access to A gates on both sides of the terminal! Don't go to the wrong security line! If you do, there is a walkway to the other side past security though!
Travel a lot and deal with "normal" air travel problems often but I will avoid IAH always (awful layout, long lines for help, of course humid and, though friendly and caring, no REAL help given).
Sometimes, an elite security checkpoint is open on second floor of terminal C. But not after 4pm on thursdays, as I and 100 of my closest friends just found out.
Not amusing. Limited cafés, below average duty free with limited variety of souvenirs and etc. Announcers mumble not aware this is an international airport and not everyone is Texas born. Free WiFi.
TSA lady checked my hair (already down). I was like, "O...kay?" TSA guy in front of me responded, "Don't worry, you were very good." LOL! They must have been bored!
I'll tell you what isn't good here. Customs and immigration. Do yourself a favor and get Global Entry. Don't wait hours waiting in line. Only airport in in the world that doesn't have Crew line.
George Bush Intercontinental Airport is the 8th busiest airport in the U.S. and offers service to more Mexican destinations than any other airport in the nation.