Is the ttartisan m 100mm f 2 8 bubble bokeh worth it?

Here is what the site says about that.

From TTArtisan M 100mm f/2.8 Bubble Bokeh: TTArtisan M 100mm f/2.8 Bubble Bokeh: A prime lens by TTArtisan for Full frame cameras, 100mm f/2.8. Designed for soap-bubble bokeh highlights. Specs - Maker: TTArtisan - Focal length: 100mm (prime) - Maximum aperture: f/2.8 - Made for: Full frame sensors - Mounts: Leica M - Stabilised: no - Autofocus: no, manual focus What it frames like - On full frame (Leica M): as marked, 100mm. Cameras it fits - Leica M9: Full frame - [Leica ...

From Sensor sizes: Is full frame worth it?: For low light, events, and portraits with very shallow depth of field, yes. For travel, street, wildlife on a budget, and most hobby photography, a good APS-C camera with good lenses is enough, and you'll carry it more. Lenses and light matter more than the last stop of sensor performance.

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