Fact is, this is an over priced, over hyped trick that has the obvious flaw that anyone can do the first part just by replicating what you've done, and the clean up leads to a discrepancy that you can't perform your way out of particularly easily. I figured it the first time I saw it. I didn't watch the demo video 50 times. I watched it once and was like......that's just painfully obvious, then I guessed the clean up, and was disappointed when I found out I was correct having seen the video.
So yeah, this is a good effect, but this isn't the best effect since sliced bread. It does have flaws. I know many on this forum are all excited about it, and spent their 20 bucks and are like.....wow this is the best ever, but the truth is its not. It's cool, its entertaining to watch and to perform, but this isn't a reputation maker. It's just way too obvious. I've not been busted performing it and I've had great reactions, but I know when they go home, or as they think about it they'll be like....ahhhh. Compared to some of the other stuff DG has done, this is just sub par. (He does set a high bar for himself but for me this comes in way under it.)
I'm sure the Theory11 line is, well David Blaine, Daniel G and any other number of professional magicians have performed this and always and only had great reactions. Well fact is, you give Monet a stick and he uses it as a paintbrush, he'll paint a good picture, but you can't then go off and sell that stick as the be all and end all of paintbrushes imo.
So yeah, fact is, some percentage of people will be like me, or any number of other people that understand basic physics on which this trick is based and will be like.....obvious. It's not going to kill a performance, and they'll probably recognize the coolness, but it just falls short of giving the impression of being real -magic- to me.