Sure Dave.
My point of view is a reliable, durable and lightweight system to not only transport and dispense fuel but also carry a battery., small glow driver glow sticks and perhaps a couple small tools.
I wanted the smallest footprint I could get (The complete package takes about the same space as a plastic jug). I also wanted totally leak free and puncture proof after seeing a plastic jug impaled in a cars trunk, and various other fuel bottle leaks. At .080" thick, this can is very hard to puncture yet light in weight. While I may mix and measure with poly containers, I never transport or store in plastic, per the VP suggestions.
I got was I was looking for .
Just like to offer examples and suggestions for others here. If you see problems in those examples, please be specific when you enumerate so everyone can see what the problem is.