Yamaski, QNIX, and X-Star are all Korean monitor brands, and they are known to deliver monitors with unmatched specs for their price, and there is currently a lot of hype surrounding them on the Internet. For $300 on Ebay (buy on ebay for QNIX/X-Star monitors, everyone does and you get the same quality as on Amazon pretty much) you can get a 1440p monitor for only $300 that is both PLS (Samsung's version of IPS meaning it delivers a significantly better image compared to TN panels and many people prefer PLS to IPS even though IPS is hundreds of dollars more expensive) and overclockable to 120hz (QNIX/X-Star also delivers the only monitors that are both PLS or IPS and 120hz).
It's not that Yamaski isn't a trustable brand as iceclock...