Oracle of Kabbalah by Richard Seidman ?s

http://www.learntarot.com/okdesc.htm

I read the book for this deck at the libary and it seemed cool, then i realized there is a deck that goes with this. i saw the deck at a few places, but i just wondered if anyone has it or has used it and like what r your experiences with it? is it true to mystical judisic kabbalah?
Just basically any ideas.

thanks

The cards seem to be just letters and numbers, but then there is the "missing" number card... I don't get it?