We spent two night here and really enjoyed it.  There is a nice hike right from the campground.  The trail allows motorcycles but it doesn't appear they have been there much.  We didn't see any.  Usage would be light/medium I would say.  The road in is good for all vehicles but I question the length recommended.

Our 5th wheel is a short one and there we only a couple of sites we could fit.  I would think a 30' trailer would be about it.  There were a couple of dispersed sites on the way in that could have taken a bigger unit.  The road in is a one lane affair so a big rig would have an interesting time if they ran into some one going in the opposite direction.