VP12 Performance Chip - Has anyone tried it?

[fbc]

I was going through ebay tonight and ran across an auction sells chips that can increase your performance with optimized maps fuel/timing,etc.

VP12 Performance Chip

It's 89 bucks, so it's not exactly a deal breaker.

Has anyone had any experience with this unit? It says it support all aveo 1.6L engines.
The DYNO test show slight improvements for certain vehicles. Which doesn't necessarily mean you will see any with our engines, but for 89 bucks and just a few splices of your ODBC cable; I might be willing to take that risk.