This is the only dog park we have taken our puppy to... and it's hard to check out another one since this one is exactly what we are looking for. We usually go when it's already dark outside but it's not an issue because the park itself has a ton of lights...so it doesn't matter if it's 7pm. Most of the dog owners seem to be paying attention and to be someone in the area of their dogs. Most of the dog owners are also quick to pick up their dogs poop. Yes there have been times where some of the dog owners are on their phone or chatting with somebody else and not paying attention period out of the many times that we have been there so far, any time dog start fighting it is broken up immediately and no additional drama occurs. The spark does not have a different area for big and small dogs so everything and everyone is just mixed in together. I highly recommend this park! It can be difficult to find... the dog park is located in the North east corner of the Tempe Sports Complex.