Worth the trip
Went several years ago. Took the re-inactment tour and loved it. Very informative, perfect for any age group. Part of it was not handicap accessible as part of it is actually on a UGRR site (farm). The enactors were very good and the experience was exciting.
Also went on an overnight trip with them. Also informative, well organized and fun, too. Because the tours are in a specialty market, prices are a little bit higher than other tours - but well worth the money.