Octron has plenty of volume, didn’t say it had more than an OC5 , just that it doesn’t suffer from what OC2 clones suffer from. It is loud, if you want it to be.
Tracking wasn’t an issue for me. Not saying it tracks better than an OC5, just that it tracks in a way that made me forget about this as an issue. It was easy to make it sound excellent and any “how does it track?” worries disappeared upon playing it.
It has an octave up (similar design to OC3, in that it is a fuzz / dirty vibe) but way better to my humble ears.
I’ve had OC3 and OC5 and very much prefer the Octron but you are of course the best judge of what you like dude. Enjoy the fun.
As for price… to me, a robust analogue device from a small firm is more attractive than a mass produced digital device for various reasons, some more rational than others, but beauty is in the eye of the beholder:)