I had the privilege to see this document before being published and this is indeed a nice variation of the original effect. You will definitely like this ebook especially if you are into telephone type of effects.
I received the complimentary copy of this book and from what I can see is that this book is something worth investing in. The effects inside this book are versatile as you can perform them both in person and in virtual environment. The method taught inside this book is something you can re-use to create your own powerful effects.