Has pros:
If you get a repair and you don’t know where the wires go in it, it does its job quite well. It makes no sense to compare it with professional devices 5-10 times more expensive, but for the money it's a great thing. Pretty comfortable, backlit display and speaker are very good. In simple cases (that is, the wires run strictly horizontally or vertically, and not scattered, say, in spirals), everything that is needed will be shown.
Cons below:
It requires compliance with certain rules i