440Source "Stealth" heads, your experiences and opinions

I'm looking at a set of the "Stealth" heads from 440Source. This would be a mild build in a 100% street application. I'm just curious to see what those of you that have run them, had friends that run them, and know those that hate them, what have you experienced?
I do NOT like the fact that they're made in China, but I'm not seeing any other stock-type aluminum 440 heads on the market.

All opinions are welcome. Thanks! JOS