I am very disappointed in myself for not identifying that this product was so rubbish before making the purchase. There is no refund policy, which is rather disappointing.
I encourage anyone considering a purchase to try setting the plugin up in a real-world situation.
Here are a few things that I really was amazed at how poor this product is:
Setting prices: Instead of the normal of a simple x per extra adult or child you have to manually set the price for each number and combination.
The formatting: Each item has a class associated, but this isn´t documented so making anything even remotely presentable requires a lot of work.
The booking process: Quite simply, it's really clunky. Nothing works quite as well as it could or should.
Customer support: I´m not sure if support is provided by non-native English speakers or if they are just not very smart. I found dealing with support rather like arguing with a 4-year-old. The would quote a number of facts, but never actually relate that to my questions.
Overall, just don´t waste your money, you are unlikely to implement something you are happy with.