Went to this in October on an impromptu vacation. They were advertising a Corn Maze so thought we'd let the kids do it. Turns out that the corn maze was just one of many attractions all included in the entrance price. We ended up staying and playing for several hours. We had kids ranging from 3 years old to 17 and they all found fun things to do. In addition to the activities, there were plenty of museum-type displays including my favorite, a working steam-driven tractor. Incidentally, the corn maze was very well done and actually quite enjoyable.
The volunteers were always very friendly and helpful if not terribly knowledgeable.
I would highly recommend the experience to anyone.