My brother bought one, and all I can say is that it's small, or TINY for that matter. But honestly, nothing more I can talk besides that
Sound quality is ok, but nowhere close to great. User interface is 3 out 10, due to its smaller-sized/less-number of buttons (Play/Stop, FF, REW, Vol +, Vol -, Hold, Menu). Buttons are small and very hard to press. OLED is too small to show every info about song, thus it only shows file name - no ID tag display.
But it's just too small, and justify every downside it has. For many people, that may be a simple reason to buy it. But if you don't care about portablility, I won't recommend much.