The distinct characteristic of Abbe-Koenig prisms is that they do not mirror prism surfaces. They let you reverse images without any significant light loss. Essentially, Abbe-Koenig prisms offer reliable light transmission, especially in low-light conditions.
If you are only using your binoculars at dawn and dusk, and not really at night, binoculars with an Abbe-Koenig prism system are excellent choices. However, if you plan to use them at night, you will likely need night vision binoculars. Check out our comprehensive review of the best night vision binoculars here.