Not sure which company you’re trying.
If it’s rife with chlorphyll it doesn’t clean up the greens super well, might need multiple passes to remediate some real dark greens.
It does pull reds fairly well though.
The dewaxing wouldn’t be at the same caliber as a -40 or colder Ethanol setup. But it is somewhat quick. And is certainly useful. Can set and forget.
They work at a % efficiency, so even at 95% efficient, small bits of chlorphyll will absolutely produce a dark extract.
Issues will arise from switching batch to batch with regulators, as trace cannabinoids will come out into your “clean” solvent. So it can contaminate your next batch. Especially between new clients.