Already said

UTILIZATION

We tune the ptits buttons and it works!
Should be tested a bit, before putting a little chance, you have to find what are the knobs, what is done very quickly.

SOUND QUALITY

It's the heavy.
Very good chorus, it colors the sound énormment, a grain hot, I love.
After it is also possible to color much less depending on the settings, but for hot amateur chorus, you'll find your happiness!
Again boss fit to both amplifier transistor as lamps, the two make a great sound.

OVERALL OPINION

Excellent!
Nothing else to say, this choice I would do a thousand times!