see official website boss .....

UTILIZATION

of the first uses, with knowledge of the average effect is style, usage is pretty simple .... it is always advisable to read the manual to use deepens ..
the manual is adequate but sometimes not very clear ....

SOUND QUALITY

sound quality is rather successful for a multi effects, despite the drought in his few ..... it always pedals mieu to have separated, but it's also not the same price ....

OVERALL OPINION

I use it for three months and I did more or less around the capacity to spend two or three hours a day .... I use the pedal before separating boss (synth, chorus, whawha) ...
the sound of the chorus is the thing for me .... the most successful cons by the possibility of live synth sound effects rather limited in comparison with the SYB-5 pedal .....( even if the saturation is superb on the gt10b) the loops is really a gadjet shortly be useful for playing or even that expensive ....
I personally find her very unnecessary ... they either make a useful loops or they do not put it .....
value for money is pretty interesting .....
I would experiment with the same choice ....