The ratio of price and quality is very pleasing, I will repeat the purchase.
Bought to replace the regular XC16-50mmF3.5-5.6 OIS II for Fujifilm X-A2, autofocus feels 1.5 - 2 well, it' Be/r6Eez5TjrGs - opening the package with a comparative photosensitivity test
Pros
Fast autofocus, compact, high-aperture, dustproof.
Cons
If there is, then I am not aware of them (amateur photographer)