It's odd that this exercise isn't more popular. There's less restriction on weight compared to dumbbells or kettlebells, and it's easier to do than the barbell sumo deadlift, where many struggle to maintain proper form and end up training low back harder than glutes.
This version allows you to lean forward, keep your weight on your toes, and power through with your extension. This activates the glutes better, and makes it more advantageous for athletic performance.
Starting with a weight you can curl 12-15 times, do 8-10 reps on steep side of preacher bench, match those reps on the angled side, then stand and rep out.