I have no taste for crow, nor do I feel entitled to a helping. This was the one online review I found, but not everything exists on the internet. I have absolutely no problems trusting James Yeager. Him refusing to try the sights is completely inconsequential as I, for one, do not need to eat poop to know what it tastes like.
The sight makes no sense, and answers a question not asked. What benefit it serves at extreme close range, if any, is far offset by the detraction from intermediate to long range accuracy. With no way to verify elevation, it is useless at anything above contact range. I feel this concept has been brough to its pinnacle by the Ashley Big Dot sight, while still offering useable accuracy at extended ranges.
If this is your cup of tea, then fine, but I have no need for a "square wheel."