You can go directly to the Talking Stick Resort Arena and buy tickets at the ticket office and avoid all the add-on charges from places like ticketmaster. We saved about $20/ticket by doing that about a week before the show. The ticket office entrance is at First St. and Jefferson and during the week there's metered parking on First Street right in front of the building.
On the night of the concert we used the drop off/pick up curb on Third St. just south of Jefferson. And from there it was just a few steps into the arena. When we went in they scanned our tickets and we had to walk through a metal detector.
There were a lot of beverage and food vendors. They definitely sold beer, but I'm not sure about wine or liquor. The prices were pretty steep - 6.50 for a bottle of water. And more for a soda.
We had relatively cheap seats but the view to the stage was excellent. The seats were tight/small. We also noticed that there was handicapped seating/accommodations. Some seats were reserved for handicapped and there were several concert goers in wheel chairs in the floor seating area.
The restrooms were big enough to handle the large crowd. We thought for sure we'd have to wait in a long line at intermission, but we were able to walk right in. The stalls are very spacious, too.