Is the ttartisan 50mm f 1 4 asph worth buying used?

Here is what the site says about that.

From TTArtisan 50mm f/1.4 ASPH: TTArtisan 50mm f/1.4 ASPH: A prime lens by TTArtisan for Full frame cameras, 50mm f/1.4. Specs - Maker: TTArtisan - Focal length: 50mm (prime) - Maximum aperture: f/1.4 - Made for: Full frame sensors - Mounts: Sony E, Nikon Z, Canon RF, L-Mount, Leica M - Stabilised: no - Autofocus: no, manual focus What it frames like - On full frame (Sony E, Nikon Z, Canon RF, L-Mount, Leica M): as marked, 50mm. - ...

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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