It's a great effect - it just depends.
If you use it as any run of the mill, typical presentation, chances are, you will get bored of it.
As with any magic effect, you have to put in your own effort to make it your routine - only then will you not eventually get bored of something. I have routines I've performed hundreds of times literally and am not bored of, and others I get bored of easily, because I just don't like the effect for some reason - therefore I don't like working on it, therefore it doesn't become a personalised effect, therefore I get bored.
But yes - it's more than worth the money. So many possibilities. I currently use it as the second half of a thought of card prediction routine.