Night Vision works well. I don't have any point of reference with regard to Gen I verses Gen II or Gen III, but I would say that I was pleasantly surprised by the capability of this unit. I was also pleasantly surprised to learn that there are a number of cool accessories available for this device (i.e. camera adapter, different lenses, head gear). Unit seems to be well constructed and I hope that it proves to be long lasting. Overall, I would say the monocular is an excellent introduction to night vision technology.
Pros: easy to use, works well, long battery life
Cons: ir illuminator emits slightly visible red light
This review was written in the old system and had content requirements that are different than reviews written today.