If you're looking for a polyphonic octave genarator, then you'll be paying for it. thats just the way life works, this little guy cost me 15$ and if you're looking to just play around with a octave then you can't go wrong really. i actually use this live and have recorded with it. i use a digitech whammy V5 on the octave up plus dry tone and use this on all the knobs up and you can get a Dead Weather esc tone. and because it bounces with the low octaves it has a ring modulator kinda vibe. just remember if you can get the tone you want with a ss 15 watt amp and boss metal zone then who cares what people think.
one trick pony that sometimes does his trick, but it's a decent enough trick. you'll get what you pay for and yr not going to pay for much to get this beastie. It can't behave in a professional manner and it's glitchy as all mayhem... but that's it's charm? I've had mine for a while it seems, just a memento from a past life that really I should leave behind. Make sure you use the neck pickup and a great compressor helps, but tracking will most likely always be a pain.
I really bought this one because of the price and it has only -1 octave, -2 octaves and clean signal. It's not polyphonic, and it's hard to manipulate the knobs. I see it more like a toy and not like a musician's tool.