I've been taking our dog there since March 2018. Good owners and dogs make it friendly. There is a separate area for puppies. In can get a little muddy in one small area during the Spring thaw or after a good rain.
Good place and good people! My pup had a blast here
It's nice that Clarington has made the effort to put in an off leash dog park, but there is a serious lack of shade in most of the park, and the small dog section has none at all. It's also a bit of a hike from the parking lot to the park itself, along a gravel path, which may be a hindrance to persons with disabilities. Still, it's better than no park at all.