Is the 7artisans af 40mm f 2 5 worth buying used?

Here is what the site says about that.

From 7Artisans AF 40mm f/2.5: 7Artisans AF 40mm f/2.5: A prime lens by 7Artisans for Full frame cameras, 40mm f/2.5. Specs - Maker: 7Artisans - Focal length: 40mm (prime) - Maximum aperture: f/2.5 - Made for: Full frame sensors - Mounts: Sony E, Nikon Z, L-Mount - Stabilised: no - Autofocus: yes What it frames like - On full frame (Sony E, Nikon Z, L-Mount): as marked, 40mm. - On APS-C (Sony E, Nikon Z, L-Mount): like 60mm on ...

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.

Quoted from this site's pages.