Nice hour but a little pricey
Went here with my girlfriend and 2 children 10 & 13. I guess I will start with the costs, 14.95 for adults and 8.95 for children plus tax. The staff are very nice, the shop is full of items not from the site, however you can get a coffee mug or T Shirt.
The actual tour lasts about 1 hour, and is very interesting, but not worth the price tag I would say.
It is a walking tour so not recommended for the very young, old, or those with walking disabilities.