I rode there today, for the first time. Being 20 minutes north of there, I should have tried it sooner. I found the main trail, Hawthorne, to be fairly easy and fun. The two loops Big Foot and Back Woods were far more challenging. Lots of tight twisties (which I love), a few creek crossings, some of which were tricky, and lots of roots (which I despise). The trail labeling is horrible. If you are not familiar with the layout from past experience, and are not looking at a map while you ride, there are quite a few places you will likely be scratching your head, figuring out which way to go.
I saw a sign posted there about a work party this weekend, with mention of fixing the trail labeling. That would be very nice.
When I get tired of Allatoona Creek, Rope Mill, Blankets and Mt Tabor, it's nice to have something different, close by. Especially since parts of it are so challenging to ride (at least to me).
Oh, and the woods there are really pretty (when you can't see the powerlines, nearby houses or junk in the several creeks).