I had one of the best times on this tour.
We got blessed to have the actual man himself Scott running our tour and if his regular staff are even 1% as passionate and knowledgeable as him then it is always worth the price of admission.
The slices were amazing, the knowledge dropped was incredible. At one point he bought cans of tomatoes and taught us not just about the pizza but the tomatoes, the differences in them, where they come from, frigging everything!
At the end of the tour Scott made sure people knew where they were headed next, if it was a pizza place or it was a transit spot. He told folks were to go, and he gave me some great advice on where to eat next.
If you are considering going to one of these tours, DO IT! You will not regret it, you will eat well, and you will learn a lot.