I agree with Craig - it will be down to presentation. Im thinking of using it either in a beer garden or at a BBQ in the summer. i.e. when most people are a bit merry on the old sherry.
It is not a 'trick' as such, but more of an act (I suppose). So anyone expecting a ground breaking gimmick and trick may be disappointed.
Oh, and I just love the well thought out review by danwseers1.
I cant really write a proper review, as I've yet to have a proper oppurtunity to try it out, so if anyone has, feel free to post one.
Rob