Has anyone tried the "Stealth Plug"?

Aloha all! I just got my new Kala Mango from MGM today and since it has pick-ups installed, I figured that I'd try record directly to my PC with something called a Stealth Plug (USB & pre-amp all in one cable). I've been playing with Adobe Audition but so far, it's a no go... Audition recognizes when my mic is attached, and the Stealth Plug has been installed as per the instructions... anyone had any experience with this thing (good or bad)?
Mahalo