BioTabs and autopot - what to choose coco or soil?

Due to frequent trips, I will have to switch to cultivation with automatic watering. I will cultivate automatic plants in 15l autopots with BioTabs fertilizers.
BioTabs suggests a mixture of coconut and perlite 50/50 for typical coco cultivation.
Or maybe it would be better to try the soil/coco mixture?

I will gladly hear what experiences you have with BioTabs and autopots.

I haven't had great results with this method. Some strains work great others not so much. I would tell you under no circumstances should you use pebbles in the bottom, autopot even say there is no need. I've had so much trouble with pH using pebbles in the bottom. I personally use 50/50 soil/perlite. The strains that worked amazing for me with biotabs was orange sherbet, amnesia Haze and blue dream from fastbuds, I can't think of any the others. If you use nutrients all strains work well. From what I've seen coco and biotabs are useless

I've not seen many succeed with coco in autopots. That's what stopped me from buying them years ago.