Super Joybox 13 for Project 64

[Ario]

I'm thinking of buying a Super Joybox 13 to use instead of a keyboard for project 64. It basically plugs into a USB port, and then lets you lug a gamecube controller into it as a PC controller.
Has anyone else tried this, does it work, and if so, can someone post me instructions on how to get it running please?

[ticktock]

from what i understand, its plug-n-play, but i won't trust it unlest you can buy it from an actual store and beat up a clerk to get your money back if it doesn't work.

[Ario]

Nah, I'm getting one from Ebay, and you know that reviews from retailers make the item look heavenly, so I'm hoping for an honest opinion, as I can't refund it.