BASICALLY IT is the most insaine fuzz pedal on earth; I can get tones like cream style fuzz hendrix style fuzz, and for newer i know that Muse uses fuzz factorys alot and go so far as to have them installed "in" there guitars!! Go to
http://zvex.com/phpBB2/viewforum.php?f=5
(for more info on people and settings!)
And go to
http://zvex.com/fuzz.html
( for info and demos of the pedal)
I think if you plan to get a fuzz it is the most awsome do everything normel to insane ultamate tool!
and if you are warry to shell out the bucks he makes the same thing in not so cool a paint job
http://zvex.com/vexter.html
Sorry for the long post but its info you need if you want to make an informed desision; watch the demo and check out the fuzz factory forum