I was happy enough to have come here and hiked for the day, but it's a bit out of the way for me. Perhaps it might be worth a fall visit to see what fungi sprout (there's a ton of oysters there right now), but otherwise there's nothing particularly special here that couldn't be found closer to home. I can see this being like a Cougar Mt. for the northern folks - a good place to go when you want a close in day hike with a good number of route options.
There's probably a bit more than 11 or 12 miles of trails and a fair number of them are newer than the online map. I took the advice of another poster and pieced together a google map too. I took both and found both to be useful. They both have different deficiencies, so one is not better than the other and not even both of them together have all of the trails you'll find in the park. Some trails are well marked, others are poorly to not marked, so be prepared to wander a bit if you have no map at all and even if you do have one… It's not a huge place, so I wouldn't worry too much about becoming seriously lost, but if you are a very nervous sort this place may cause you some moments.
I think I walked a total of about 11 or 12 miles all together and covered a great many of the mapped and a few unmapped trails, without much backtracking at all. On a Tuesday afternoon it was pretty quiet, especially in the morning. I was however almost run down by what appeared to be the local high school cross country team though… I was almost at the parking lot when they came barreling around a corner 3-4 across the trail leaving no room for others, unless you felt like jumping quickly into the bushes. There were probably no fewer than 30 in two slightly separated groups. One fellow who was not paying attention had to literally jump sideways as he did not notice me until I threw my hands up over my face - I was sure I was about to get knocked over… but he managed to miss me, not fall and not not knock any of his friends over…