It's a great service for providing the wrong answers to things I didn't search for, but I admit I haven't yet figured out why I am supposed to desire this.
Thank God. The cult was getting horribly boring after coasting on leftover nonsense for a few years and I'd quit doing much but checking in every couple of months to watch them lose money. Here's hoping this produces a fresh generation of bagholders to perpetuate my weird trainwreck-staring hobby with a fresh injection of fascinating new madness!
I was very skeptical of this until I had the chance to fly one of those brand-new C172 models that come equipped with 'em. They're so convenient!
Sure, ye olde haptic feedback + inner ear + stall horn/shaker combo has always worked for me—but if you are a new or overwhelmed or complacent or unlucky pilot, having a big angry indicator sitting atop the glare shield furiously (visually & audibly) informing you of the approaching cross-control stall that is about to bury you in your base-to-final grave makes danger IMPOSSIBLE to miss.
The LEDs were bright enough to be clearly visible even under direct sun, but the Geiger-esque clicking and chattering increasing in urgency as I approached critical AoA made it for me. No need to put your head down or even alter your scan to include it: you can hear trouble coming!