For its price, it is very good.
On the positive side, the relatively small size and portability, the LED light (with 3 AA batteries), and the very good quality of the magnifying lens that does not distort. Even if it only had these, it would do the job for me.
On the points that need improvement: The tightening of the arms could be better, without this meaning that you won't get the job done. It just requires a bit more effort to stabilize it, which is reasonable to some extent due to the small size and limited space for maneuvering.

Wasted money. The arms do not tighten properly at all.. also difficult to use. Good in theory but useless in practice.