Is the sony fe 20 70mm f 4 g worth buying used?

Here is what the site says about that.

From Sony FE 20-70mm f/4 G: Sony FE 20-70mm f/4 G: A zoom lens by Sony for Full frame cameras, 20-70mm f/4. Specs - Maker: Sony - Focal length: 20-70mm (zoom) - Maximum aperture: f/4 - Made for: Full frame sensors - Mounts: Sony E - Stabilised: no - Autofocus: yes What it frames like - On full frame (Sony E): as marked, 20-70mm. - On APS-C (Sony E): like 30-105mm on full frame; f/4 gives about the depth of field ...

From Buying used: Buying used: Cameras and lenses are built to last, and many photographers upgrade often. That makes the used market one of the best ways to afford good gear. A body that's one or two generations old is often most of the camera for a fraction of the price.

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