Upvote:15
You'll never know what you are going to get. Unfortunately, CBP officers have an large amount of leeway and not a whole lot of oversight, so the experience can vary quite a lot even at the same airport.
Some CBP officers are difficult, but many are just doing their job. Chances are, you are going to be just fine and it will be business as usual.
This being said, I had one of my worst immigration experience in PIT coming back from Europe. At the time we were as harmless at it comes: young family with three small kids from a "good" country, US residents with a good job, H-1Bs and H-4s with plenty of time left on them. Yet the officer didn't want to let us in. No reason was given; he simply didn't want to. The only thing I could was to (very carefully) stand my ground and grovel profusely (please, please, please!!). That eventually did the trick, but it was humiliating and nerve-wrecking to say the least.
However, I don't think this type of behavior correlates with location, so you'll be fine.