I ordered the Orlando book from the Entertainment website on Thursday and received it on Saturday. WOW!
I think it depends on what you plan on using it for.. but I did find that the website listed alot of the participating restaurants. So you may want to check it out. Especially since the book is $40
So far I have noticed lots of fast-food BOGO offers... rental car discounts, etc.
I didn't have much of a chance to look mine over yet... but if you have a specific question that you can't get answered with their website, let me know and I will check my book for you. (I'm at work right now and the book is at home).