The colors are very cool as well

Nice display and color.

This one is yellow but they have other colors as well.

An awesome headstock tuner, and it comes in attractive colors

But what some of those other tuners have is that they are small; this one's pretty big for a headstock tuner, and the vibrant color of the case means that there's no disguising it on your guitar.

Another negative is purely cosmetic and subjective: the hideous yellow color of the outer band

The touch of the button (lower center) turns it on -- lights come on top and bottom (colored lines)

Bright color readout with big lettering (perfect for aging eyes)