I've had my x10 for a month now. I am really enjoying it except for a few little things. I think it sounds great, for the money.
One problem is no gapless playback. Very annoying at times. And especially on an album that should be gapless, it seems to skip the first second or two of the beginning of the next track. I really hope that they fix this.
And when looking for music, it gives you very little time between button pushing, to search or it goes back to what's playing.
But it does sound great.