You'll never be able to perform this thing in real life... it takes a ton of time to set up and it's pretty obvious that it's just a trick (the shoes thing and everything) and plus your hands get really oily after you mess around with clay so you wouldn't be able to do anything else after this trick.
I wouldn't buy it for magic purposes, maybe just for something to own because it's cool but the price is too high anyway
If you're a magician, what's wrong with doing something that's obviously a trick? Most of what we do the audience knows is "obviously a trick". What else would they expect from a magician? Find the right venue (an intimate parlor setting or something of the like) and I think this could be incredible. What set-up are you referring to that takes a ton of time? If you're referring to the set up of molding the figure I have to respectfully disagree. Done while telling a story of God's creation of man or perhaps Dr. Frankenstein's obsession to create life from lifeless matter, I think this could turn into a brillaint performance piece.
If you're referring to the time it would take to set-up before this begins, I have no idea what that entails but the description said this resets in 2-3 minutes so I'm guessing it's not a lengthy set-up.
As for oily hands....I think a wet nap or two would suffice to help you clean up.
It is expensive though, which as some others pointed out can be a good thing. It will help protect the illusion's secrets and those willing to pay the high price are far less likely to expose it.