i feel that u should understand what u are trying to buy. i saw their website using cheap asrock motherboards - dont know if it is good or not.
Asrock isn't like biostar, don't worry.
They are quite similar to asus and used to be a subsidiary.
Many years ago, this asrock brand entered the market and people have had their doubts regarding its quality. But nowadays its well known so people don't ask about it anymore. I would say its as popular as asus.
None of my asrock boards has had an issue so far, they are reliable and cheap. That explains why many people choose to use and recommend it. I don't see a reason to pay for more expensive board unless for aesthetics,overclocking or features. Money can be spent to improve the performance of the system instead.
If i were to pick motherboard, i would go for asus or asrock... other brands don't feel like a full package to me.