supersixmotorsports.com powerpak

I just want to know has anyone bought the stage 1 power pak for the 96 and up 3.8 V6 from supersixmotorsports.com. If so did it help and how do you like it.

Here is what i am talking about:

http://www.supersixmotorsports.com

Looks cool!

i know a lot of people like to talk about em ... not many people have bought the power pack though, most engine shops should be able to do just as good of a job if not better for the same price of probably less