Title is "Notable Power Flarm saves - is it worth it"?
The answer is, it is worth it BEFORE it saves your bacon! When it saves your "bacon" is when it pays off. As noted by J Fitch, who somehow can get situational awareness off a tiny winny iPhone screen

Imagine a 7 inch screen mounted in panel that tells where your traffic is and color codes it as to below (green), above (blue) or same level (red). Now imagine this same device actually telling you while graphically showing you where to look, "Traffic 20 feet above 1/2 mile". That is a lot of situational sh*t for your awareness.