I've gotten some fantastic results with HPS. I like to run MH bulb in veg and then HPS in flowering. I like how HID grow lights come in at a lower price; I don't like how much heat they give off. I switched to LEDs mostly because of that. I feel that LED gives just as good of a result - if not a better result.
Looks like a great light. Anything by Growmau5 is good stuff. I'd like to see the par measurements on that one to see how well the light is spread across the coverage area.
what are your thoughts on the HPS bulb being better than the LED?