Nice but no cigar. There is no readme and the applications site is in Korean. And my Korean isn't what it used to be.
It doesn't help either that the controls aren't exactly intuitive. And, imho, none of the skins is very clear. Luckily, the used font is a TTF, so that can be changed, I think (and believe me: that is very, very necessary!). But that won't solve the issue of the unclear skins, and the lack of displayed information (like track duration etc.) in the skins. And, to my taste, the skins hurt my eyes: they are too "cute" and "anime"; a lighter colour shade might help a lot.
If the source code will be hacked by someone to re-map the controls (because there is no settings-file) and if somebody would design a clear skin w/ enough displayed info in a comforting colour scheme it might be nice.