Product as advertised. Easy to use and the brightness is good (also adjustable). It sits on my monitor and doesn't bother me. HOWEVER, when I use the on/off touch switch or adjustment switch located to the right of the light bar, I press on the right side of the unit and it tilts sideways. The attachment part does not fully press the device to the monitor; he more or less sits on top of it. I still rate the products a 4 as I've learned to put my fingers behind the block for support and activate the switches with my thumb and I'm happy with the light the block puts out.