Is the laowa 7 5mm f 2 mft hard to focus manually?

Here is what the site says about that.

From Laowa 7.5mm f/2 MFT: Laowa 7.5mm f/2 MFT: A prime lens by Laowa for Micro Four Thirds cameras, 7.5mm f/2. Specs - Maker: Laowa - Focal length: 7.5mm (prime) - Maximum aperture: f/2 - Made for: Micro Four Thirds sensors - Mounts: Micro Four Thirds - Stabilised: no - Autofocus: no, manual focus What it frames like - On Micro Four Thirds (Micro Four Thirds): like 15mm on full frame; f/2 gives about the depth of field of ...

From Buying used: Checking a camera body: - Shutter count. Shutters wear out eventually. Ask for the count, or read it from a test photo's metadata with an online tool where the brand supports it, and compare with the rated life for that model. - The sensor. Take a photo of a plain sky at f/16 and look for dark spots (dust is fixable; scratches are not). - Ports, buttons and dials. Try every button, the card ...

Quoted from this site's pages.