Flex Fuel conversion kit for H3

http://www.change2e85.com/servlet/Detail?no=117
 
$424.00 to be flex fuel capable.  From what I've read this might save some bucks.  What is your thoughts?

I think we talked about all the conversion process and debated the topic back here:   Hummer H2/H3 E85 Flex Fuel upgrade/conversion kits Info
 
Updates anyone?

I must have been blind not to have spotted that.
 
Please delete my subject thread so as to not dilute the main thread.