I could test it against swaro El Fieldpro and zeiss sf
What most impressed me with the N was the ease of view !!!
1. No CA visible.colour cast was warm and very comfortabele short distance focusing.
2. Impression of sharpness was at all 3 on highest level
3. Contrast impression was highest with swaro and Noctivid
4. Focusdrive was very nice and pleasant , quite close to the eyes , but after some time using the bin , one get used to this position
5. No added value seen on presumed 3D effect or DOF
6. At first sight , no big difference with the Leica HD plus on optical performance
7. There is indeed a colourdifference in coating between the 2
8. In general , a quality impression with great ease of view and great colour fidelity