It is a great place for learning, lots of information, however the only down side is it is packed. I went to the gift shop and was over charge and double charged, I did't realize until I was back on the bus (had to hurry as it was leaving) so I called to ask what can be done as I am way to far away to return and I was told im out of luck I have to be there in person to get a refund for the double charge and the over charge.
The above rating is based on the customer service, not the learning ecperience.