No recs, but i also just got an autopot and plan to use canna coco.
Bud of mine used AN in coco, a decent harvest but he didnt use an autopot.

autopot devotee here, I use green planet dual fuel nutes with their added supplements with awesome results. I may drift towards the canna coco line for a run or two in the near future or the general hydro nutes. I have an aquarium wave maker in my res to keep everything churned and after setting and checking settled on ten minutes every four hours, cheap, quiet, low watts, no ph bubbles, no worries, though from what I've learnt a sub pump is on par with the wave maker. And, you'll love the autopots, unless I go full chiller rdwc I'm sticking with them, 4 x 3.9g ftw.