There is plenty of room for dogs to run and socialize while the owners sit and chat. There is even a smaller park for small dogs, as well. I like that it's open until 10 PM, but there seems to be some issue with upkeep: one time, the place was locked at 5 PM--and no evidence of any irrigation, so that rules that out--and the other night, we came by at 8 PM and all the lights were out. "It feels like we're walking into a horror movie," I teased my friend. Thankfully, we weren't alone; there was another dog owner who braved the darkness to let his pup get some exercise.
The dog parks in Phoenix can't seem to compare to the ones in Los Angeles, but then again, they don't really have to. I like the Petsmart dog park, and the friendly dog owners that meet there, too.