Hey,
POG 2 is a real nice tool. I tried a lot of octave pedal but this one have a really nice sound, it track very well and allows you a lot more with the attack, lp and detune things. If you never tried, you should!

Here is a nice and short run through of the POG2:
https://www.youtube.com/watch?v=Mj1chPbj1So

And even on bass guitar! It track pretty well and sound very nice!