I lived in this neighborhood a number of years ago and can assure you this isn't a park you'd want to visit with your kids or even by yourself late at night.
Any evening of the week you can find homeless people living around the park as well as people dealing drugs.
They did have softball tournaments here quite regularly. If you're coming here as part of a large group you probably won't have any problems with the riff raff that likes to hang around here. But as far as visiting it for a leisurely stroll or a quite picnic I'd definitely look elsewhere.