Is the 7artisans 18mm f 6 3 ii worth buying used?

Here is what the site says about that.

From 7Artisans 18mm f/6.3 II: 7Artisans 18mm f/6.3 II: A prime lens by 7Artisans for APS-C cameras, 18mm f/6.3. A body-cap-thin pancake. Specs - Maker: 7Artisans - Focal length: 18mm (prime) - Maximum aperture: f/6.3 - Made for: APS-C sensors - Mounts: Sony E, Fujifilm X, Nikon Z, Micro Four Thirds - Stabilised: no - Autofocus: no, manual focus What it frames like - On APS-C (Sony E, Fujifilm X, Nikon Z): like 27mm on full frame; f/6.3 gives ...

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.