Another Well Regarded Legacy: Nikkor 28mm f/2.8 AI-S

The 28mm f/2.8 AI-S is a well regarded lens from the early 1980s that is still available new today. But what's the point of this compared to, say a 24-70mm f/2.8 zoom? And how does it fair for use as a walk-about or an environmental portrait lenses at/near wide open (f/2.8..f/5.6) apertures?


^{28mm f/2.8 AI-S}