What a snappy name for a pedal eh?
Things I don't like about octave pedals: warbly wobbly upper octave, bad tracking, lower octave only sounds synth, or only sounds realistic - I like a bit of flexibility - and a pedal with no special sauce, nothing unusual added.
So I like the MXR Poly Blue very much - ticks all boxes. I like the Joyo XVI - ticks most. I like the Boss OC5 - ticks most.
And I have to say I also like The 85.
The addition of a 5th is a really cool feature, the Focus control alters the whole sound in unusual ways. If there's a downside it would be that you can't simultaneously select octave up and a 5th up - its either or.
The one time I've gigged it I found the 5th, blended with a smidge of -1, and full dry signal produced a wonderful harmonious thickness to my sound. Used on appropriate songs it filled the sound under solos in a very satisfying manner.