Very good flight from Puerto Vallarta to Houston-Bush. The PVR airport terminal is quite noisy and chaotic - definitely worth it if you have airport lounge access. The United folks were very efficient in setting up portable stanchion posts and ropes for their boarding group numbers, as they seem to change gates often and share the gates with other airlines. The flight boarded promptly and we left on time. The flight was smooth and uneventful. We landed at IAH slightly ahead of schedule.
Note #1: Quite a few of the Global Entry kiosks don't work properly. The Customs officers acknowledged this. It took me 5 different machines before I got my slip of paper.
Note #2: There IS a TSA Pre even when coming here from overseas. If you have TSA Pre, DON'T follow the herd and blindly be directed to the LONG LINES security re-check area where all those coming from international destinations are steered. From claiming and re-depositing your checked baggage, you'll want to bear LEFT and you'll see the small 'TSA Pre' sign that has you going out into the hallway, heading left and over to the escalator where there is another small 'TSA Pre' sign. Once you get upstairs, you are in an area that has a large TSA Pre security area that is completely empty (this is one spot where folks from Houston get dropped off in their cars and check in). This will enable you to speed through security and it leaves you in that long walkway area between the Terminals D and E. Very convenient.