I've never really used dog parks in the past so I wasn't quite sure exactly what to expect but I was pleasantly surprised.
The area is not particularly expansive. It's set up with the open dog run area that entirely surrounds a smaller, fenced area that contains agility training equipment.
As with any place that's open to the public you do get a variety of people that like to frequent the park. Some are great about watching their dogs and cleaning up after them and others....not so much. There's always dogs around that are, seemingly, unsupervised and will attempt to make sweet love to my poor puppy. I've found that rather than make a stink, if I just grab my dog and walk to the other end of the park it's a lot more simple and less stressful than trying to find the irresponsible owner to control the dog trying to hump my innocent lil' puppy.
The park is maintained pretty well. Pooper scoopers are aplenty and there's a watering station for giving poochie a well earned drink of water.
Nice thing about Shawnee is that it has some trees and even has some grass. It's not just a fenced dirt lot with a dog park sign on it.
Be careful not to try and go on a Tuesday as they close for maintenance all day.
Control and clean up after your dog and you'll have a great time here.
Update!:
I've since stopped going as the atmosphere/cleanliness has gotten worse and worse. Lowered to 3 stars to compensate.