First of all, I have been a fan Of Nefesch for a while....his presentation style is a bit unusual,
but get beyond his style and accent and look at the results.
Pros: This effect is totally
impromptu. Simple, and beats all the Center Tear techniques out there, IMO and I know most of them.
You can get the "tear" without the "tear" or any destruction of the paper. Also no wallets needed,
which I have found very problematic.
Cons: Best used with one person, although several
will work, just need to make sure of angles.
Bottom line: if you want to add the best or
at least another "write down and I will tell you what you wrote", this is the trick for me.