Not sure about digidscoping because I'd vitually stopped by the time I got mine about 5 yrs ago, but it is by far the best zoom on the market much brighter at a given mag than the swaro and much larger field of view. Ignore the fact it's not sharp at the edges ll scopes are like this it's just the other manufacturers blank this bit off so they can claim edge to edge sharpness, Zeiss see the benefit in having it, you pick birds up in the edge of he view and use the centre for looking at them, it really helps when scanning flocks or seawatching.
As for digiscoping as long as the camera is compatible I'd expect it to be very good, the 15x low end of the zoom shoud give an instant advantage over zooms that start at 20x.
G