We took the 75 minute tour which takes you to a few more places than the 45 minute one. If you don't like sitting on hard, wooden seats for 75 minutes with no chance to stand up, i'd recommend the 45 minute tour.
The tour guides were very informative and had a great sense of humor. They also timed the free chocolate to coincide with certain parts of the tour when it came to the chocolate factory.
Overall, it was a great reminder of how amazing Milton Hershey and his legacy was and still is to the day. If you're a first time visitor and have no idea what the Hershey company is really about, definitely take this tour!