Well with my experience it seems that hydro was a bit touchy and now with soil its 100 times more lenient. you make 1 little tiny mistake in hydro and its hours! not days but hours! until you can kill something that took weeks of hard work. Its just too touchy for me. And i had 2 150w hps w a 90w led. i got rid of them only so i could afford a 400w autocool. I think leds are awesome for what i like to call "boost lighting". So what i mean by that is if you have a hps or mh already... led is great to focus in on the exact lighting spectrums you need while still getting all the essentials from the hps.