I have had a Luckystar super socket 7 mobo for over 3 years without any problem. Most people in the US never heard of Luckystar, so they just assume it's crap. Mobo manufacturers make money by volume through the OEM channels, not by their high-end, overclockable models. If I remember correctly, the biggest three in terms of volume are Asus, Gigabyte, and ECS. All the mobo brands in the US have to meet the quality standards, otherwise they'll not survive at all.
Kgraeme's ranking is more of a reflection of people's brand awareness in the US, not necessarily a reflection of performance or quality. So don't feel bad about your choice. What's important is the warranty from the mobo you bought, and how easy to get it fixed/exchanged under warranty.
If you don't overclock your mobo, you don't need to buy the top of the line models to impress your friends since they'll be out of date in six months anyway.