There is such a thing as "too much control". You would have done better with a Reef Breeders Value.
And the "unsatisfied users" tend to put their leds too high or use outdated fixtures. Few full spectrum fixtures are ranted against. Take the Radion Pro; almost no bad reviews on that one.
I agree, control is great for experts but I believe people are fiddling with their lights too much and shocking/frying/never acclimating their livestock because 'look at my disco lights'. It's great if you know what you are doing, but I've watched people's tank decline because, I think, they are playing with settings every day. I'm not saying I know what I'm doing, either btw.
Nothing to do with Firebird, I'm glad he's found something that works for him.