Had no problems with this airport. I like the tall windows with views of the local landscape. I found people to be quite helpful. Be aware of the guys driving carts that offer to pick you up and drive you to wherever in the airport, they will hit you up for tips after you are already rolling. No big deal, I had no cash so jokes on them I guess. It was 106 degrees when I stepped out of the airport and I burst into flames.
I actually had to eat here on my way out of town. I got a salad and a Cuban sandwich at this place in terminal 3 and it was pretty great.
I'm not in a hurry to get back to any airport, but Sky Harbor is no stress for me.