My family & I very much enjoyed this tour. I don't know how it compares to other ghost tours, this was our first. We found the stories very interesting and the walk around the town in the dark was pretty cool. I think you could probably take older kids, as long as they're past being the afraid of the dark. There are ghost stories mixed with stories of the town history so it's not real scary, but it is kind of creepy. The most disturbing story was not even a ghost story. It concerns a horrific event that happened in hog alley, it brought me to tears. Do take pictures. You never know what may show up in them. Check them out on facebook to see.
I do also want to mention for those of you that have never been to Harper Ferry, the town is built on the side of a mountain, so be prepared to walk up and down some hilly streets and up some very uneven rock steps to the church at the end of the tour. All said, an enjoyable evening at a reasonable price,