Nothing to add. A small pedal with the best known effects.

UTILIZATION

No need for lengthy explanations to make it work and create their patches.

SOUND QUALITY

Type effects chorus, flanger, delay is rather correct.
Heavy distortion (distortion, fuzz, overdrive, etc.). Deguelle really.

OVERALL OPINION

I agree with gwenandu: This pedal is a good teacher. It is a good solution for the beginner who wants to discover the effects cheaply. I bought this multi-effects shortly after I made the electric guitar and that's it served me.
Considering the price, of course Do not expect to have a sound that tears but I do not think it is the goal.
Let's say it allows the effects of taste in order to invest later in the effects of good quality.