One benefit is just using a single port on the FMM. so depending on the situation/setup you'd save $ by avoiding the need for another FMMThat liquid level sensor is pretty awesome. I think the sensitivity would work well with future fleece rollers, but not sure how much it would help otherwise. I guess tracking your dosing container to make sure you're dosing pumps aren't doing something crazy would be helpful too. I think two float/optical sensors could achieve most things we would need otherwise. But the cool factor of seeing an almost analog readout of your dosing as a comparison to what you actually think you're dosing, would be a huge plus.