As far as i can see from the site it is a device that allows you to alter the value sent from the O2 sensor to ecu, a glorified variable resistor for 150 chips?
I would invest the money in an eprom and open air kit.....
I have an Open Air Box from XPS and a Dr. Rossi Chip but won't get home to install them for another month. I was thinking it would be closing to a Power Commander since that was the comparison they used so it may work well piggybacking on an Eprom.
I was wondering if there was anyone out there that has tried it already.