The last time I was there...
First time I went there (20 years ago), rude TSAs, rude immigration, not allowed to transit because the US is weird about that so you have to go through immigration and then back again, I stepped out of the airport for five minutes to get air and was hassled and someone tried to rip me off. Slow, annoying and rude. Immigration were baffling. STAY IN LINE. "Why do you want to enter the USA?" I don't actually but the USA doesn't allow transit so here I am. I'd like to be in Canada, thanks. They make the rule then are confused by it.
Last visit. Had to get from terminal 2 to 6 (or vice versa, I forget) with two hours. Hand luggage only because I remember how bad it was last time. TSA was rude again, despite me being charming. They opened the very new duty free bag, for no reason. Made us take our shoes off even though the signs said not to. They change the rules on a whim. Liquids still in bags, shoes off? Shoes on, liquids out. Laptops in, phones out. It's like a joke. They closed the security screening in several terminals when there were still flights going through then so you had to get to the terminal, find a closed security, go back to the last terminal, clear there, then get to your terminal by a different route. All the staff who should be helpful (the well-paid ones) are all rude, arrogant and unhelpful. I've learned in the past to ask the cleaners, porters, people on minimum wage who are delightful, helpful and want you to get where you're going. The buses were shit and the poor woman with disabilities who tried to get on, let's not talk about it. They don't have the modern TSA system with the conveyor belts so you have to push your bags through. Terminals take forever to get to and there is no explanation of how or what's quicker. The buses all go to all the terminals but say that they don't. There's no good signage, no indication how long things take, no help and it smells disgusting. And they look at you sideways if you're going somewhere they are racist about (like Central America). Richest city in the richest country in the world.
And every time in between. However, all the cleaners and porters and tourists we asked, in panic, were lovely. And helpful, and we wouldn't have caught the flight without them. And a lovely young man called me ma'am and offered me a seat on the bus.
I feel better now. 