Don't forget, if you feel you can't learn it in 30 days in time for the money-back guarantee, I believe LSC also offers a 60 days free extension on the trial period (someone correct me if I'm wrong).
My experience is I understood it and knew how to implement it relatively quickly (like solidly in a week), and all the time after that was spent on practice and implementing. BUT EVERYONE IS DIFFERENT AND YOU MAY TAKE LONGER.
Good luck with the system!
-Ramon http://razor.ramon.com (still down, stupid netidentity and server problems)