Things I liked:The design features a low profile allowing use of sights or scope without using a rail riser. The goggles also feature vents in the top and bottom seal to allow for air flow which will help prevent fogging. Size adjustment is typical and easy. Things I would have changed:I would like to see a clear lens included for changing light conditions. The smoke lens works good for normal light conditions but under low light conditions visibility is challenging. What others should know:This is a great choice if you are looking for low profile fully sealed eye protection. It is ansi z87.1 rated so safety is not going to be an issue unlike some of the imported products out there. If you are using a lower mask take time before you actually need to use the two together to ensure a comfortable fit and eliminate any gaps.