Things are much more attractive when they are free, which I assume his were.
You can’t get an unbiased opinion from someone getting free stuff, otherwise you stop gettin free stuff. Also someone who wants to sell the product has some skin in the game as well. Its not exclusive to this industry.
At least for me, until i see it in a tank doing what it claims to do, and by that, i mean 3 of them over a 180 filled with mature branching colonies without shadowing colonies below and no need for extra fixtures or fill light to prevent shadowing. If it doesnt do that, its just another high end LED to me making the age old claim of covering a 2 foot section of tank. I also prefer some shimmer, so it has to do that. If it ends up not being my brand of Vodka, i think Ecotech will still sell me lights.