It's durable, very durable.
The two light-settings is really nice.
It's easy to adjust.
A little wiggly, but easy to fix with some clever riggin'
I've had this sight for a year now. It has never ben broken, it works in all sorts of light-conditions, its light, durable and easy. My friend has the same and his took a hit straight an - without getting a scratch or disfunction of any kind. What's there to say? -It's perfect in my opinion.