Things I liked: Detent mechanism to adjust elevation is nice.
Things I would have changed: The elevation platform fits pretty sloppy with the mounting platform. This is a manufacturing issue, not a design issue. The sloppy fit results in the rear peep site aperature shifting side-to-side.
What others should know: It's cheap price-wise, it's made in China. If you want a military style ornament to mount on your rifle, this fits the bill. If you want a serviceable, accurate peep sight, then don't buy this one.