alz,
I have this - but must confess to not having used it yet. I assume you have seen the video on emagictrics -
http://www.emagictricks.co.uk/product_i ... ts_id=4474 as this is what sold it to me.
The main reason I haven't tried it yet is as it requires gimmicking money (and boy does that go against the grain

).
The video shows it being performed with (I think) a 10 and 5 euro note - and as the two colours are so different it works very well. It wouldn't be as effective with greenbacks - nor would it work very well with notes of different sizes. Next month I have a trip to France so I was hoping to have it perfected by then and if no one has reviewed it before I will do a review in the next couple of weeks.
I will say though you are just paying for the secret - it doesn't come with anything else. Personally I don't mind this, but I know some people expect something else for their money.
And remember it will cost you extra in that you need the notes to make it work...