My opinion. For what it's worth, which is less than 2 cents.
The geek in me loves the features that some of the other VV's have. Digial readout for everything you could possibly think of, that's all way cool. But it's the geek part of me that wants to
build those circuits. Not buy a device with them. When all is said and done, ohms, volts, and watts are just arbitrary numbers. Unless I plan to label each and every atomizer as to the wattage I want to run it at, then it really means nothing.
So I kind of agree with your KISS philosophy. On my Infinity, I can turn the wheel to get the best performance for a given set of variables. Juice, atomizer resistance, relative humidity, planetary alignment (OK, maybe not the last 2.

). When I find what works, I leave it alone.
As far as Low Resistance atomizers, I don't understand the need with variable voltage. The whole idea of LR atomizers is to
emulate high voltage by using less resistance to produce more watts with less voltage, so why would you even need them with a VV device?