I'd imagine if I were a dog, this dog park would be like the Disneyland of Dog Parks.
They have tons of toys and even pools and water for the dogs to play in when it's getting hot. Public balls and tug toys are scattered about. There are two giant sides, one for active dogs and one for passive dogs. Etiquette here is good. I've never had a problem with another dog or owner here.
That being said, it's just like Disneyland and almost always very crowded. This could be good or bad. I have two dogs, one who gets overwhelmed by crowded places and one who loves the excitement of it. Really it just depends on your dogs personality and what he/she likes.
Also be prepared to see lots of Scottsdale moms with their fluffy dogs in bows and dresses. It's kind of like the Hollywood strip of dog parks.