I love that this place is right next to a light rail stop and right next to the airport, definitely might be worth checking out if you have a long layover. The 6$ price is really reasonable, you get a little bit of exercise and get to learn about this actual historic location. I really loved the walkway up to the museum entrance as well. Staff behind the counter were very helpful. The sign outside suggests allowing 90 minutes for the experience.
Inside is a typical small museum where you can learn about Hohokam culture, there is a short movie, a children's gallery and the main gallery. Sadly the changing gallery was closed for change on my visit, but I still felt like there was plenty to see. There is also a 2/3 mile outside walking trail of the actual archaeological ruin and some reconstructed structures to provided better examples of the housing that existed in the area. It is amazing to think about the canal system that previously existed in the area. It is quite bright and sunny on the trail, so definitely a good idea to bring some water and take advantage of the sun umbrellas. I found the site particularly interesting as I had previously visited the Hole in the Rock at Papago park which is believed to be significant to this location.
I also found that the onsite store was a good location to pick up some last minute souvenirs I had been meaning to get. Definitely better prices than similar items at the airport next door.