I did more research on the internet, and Phoenix Digital is regarded as "decent" and "reliable"". I know everyone makes a cut, but get real, virtually all car audio under $400 is made in China by slave labor. A CD headunit turns a digital code into music, they all have 20-20K Hz response. So if you factor out extra features, it comes down to unit reliability and possibly it'a ability not to skip over bumps.
I don't buy Nike or other "famous" sport shoes either.....they sell for $75-$150, but the factory in China produced them for $4.50, and that same factory made the $20 shoes I buy at Payless.