I post my review for the note back to this great pedal following the previous opinion was moderately relevant.
Becaufe it is not falling on a rare product that falls directly in the roads, he must kill him.
It is a very good price for his harmonizer
Several modes, but mainly I used the function harmonizer
I would put 7 because we can not select all intervals, for example

- 2 oc, oc -1, -1 Your -1 / 2 tone, 1.5Ton +, + 1 oc, oc + 2
I have not mentioned all the available intervals because I served mostly to those mentioned above,
Before purchasing, do like me, look at the instructions in French on the behringer site, everything is perfectly explained.

UTILIZATION

For my part I used it to double my guitar has the octave effect to give a 12-string, but also to tune my guitar a half step tones see below.
Other modes, I do not really use it, but the trem bar, giving a whammy effect, if properly exploited, can be simply awesome

SOUND QUALITY

The sound is very very true, we really feel that his guitar was taken cleanly re given in Eb, we feel just a very very slight lag, but that does not in any way to play.
As for the hamonizer in itself is a joy when his guitar has a double octave, for example, the sound does not bug when playing an agreement, unlike the harmonizer of my Line 6 M13.

OVERALL OPINION

I had to sell it with all my pedalboard to finance the purchase of a M13 today, compared with a harmonizer of the M13, there's no photo for a harmonizer to 50 € it's just the bomb, if you want one a low price, do not hesitate, despite the ASPEC plastic pedals, there's no reason they let you down, not until you jump in with both feet above
If it hurts you to put more than 100 € for a Pog .. Here is the solution.
10/10 for a great value for money!