I plan on getting this someday. I have only heard good things about this. Think of it like this:
This is the most convincing double lift.... A card spits out into the air and then lands face up. When doing this move for people, it shows you have some skills with your deck and no one would ever even suspect there being 2 cards. In their minds... you are just a cool magician when you do that. The thought of 2 cards never even goes into their mind. However.... let's say the possibility of there being 2 cards does arise... are they really going to think "Hmm... this guy somehow shot 2 cards out of the deck, had them land face up, and not separate." Of course that is what happened, but almost all laymen would not even see that as a possibility.
I see why Lee uses it regularly. I would too if I had it down. I plan on getting this at some point because it just looks so cool, it's so convincing, and people will remember you for it.
Sure it may be difficult, but with hard work comes a great reward. All should be thankful Lee released this.
-Doug