Haven't tried photographing it, photos taken at night through cockpit windows usually don't come out well.
However - visually it was impressive. Its common enough to see bright displays from time to time, with a 'shimmering' effect - but this was the first time I've ever seen the AB actually strobing, and I mean rapidly flashing, probably at about two flashes per second in rippling wave like patterns. Fantastic sight.
The HF was murder though!