I have stayed there many times and it is a very nice place to stay. There are several areas to camp at, Look at the map online and you will see the different lacations.
You should be able to get your camper into most of the areas with no problem. I have never had any problems with anyone there or any thing stolen. Every time we have been there we see the Sheriffs and State Patrol in the area and in the camping areas. The DNR is in and out of the camping areas also.
There are a lot of ponds to fish and also hiking trails. Hope this helps.