This is the best one I've tried so far. I don't see a way to download the lyrics, but it finds more lyrics than the alternatives.
It does not have the lyrics or does not recognize it. When it recognizes an artist it displays the wrong lyrics.
Very nice - supplementing my current most reliable lyrics engine being Guayadeque. Needs keyboard shortcuts to handle the 'window' on Cinnamon, nice light/dark display switch.