coupons?

SO, the fad thing to do right now is COUPONING, right?  What I"M wondering, is if all people who embark on the coupon journey end up like this guy.  Will couponing drive me TOTALLY bonkers?  Cause that's what it sounds like is happening to him.  Is it worth it?  Could I save 500 dollars on groceries or is this a big myth?  I don't want to attempt it if it's going to be heinously hard.  I'd love to hear from current couponers and get some tips and see if I need to jump on this bandwagon.