I found it to compare very favorably to my Leica. Don't own one but checked it out at Vortex and they let me do a 'walk around' in the parking lot. I'd have probably bought it that day but it was a display only at the time.
Day I checked it out was easily in the last half-hour of daylight, and overcast to boot. Still impressively crisp, great resolution.
Really liked the G4 reticle as well. I think it would make a great hunting scope.