Good, except…
The downside is that constantly (every few times that you activate or deactivate the light) a dialog pops up asking if you want to purchase some other features and when it pops up, it turns the flashlight off. It's so annoying. In the app description it says: "It isn't full of annoying advertisements like almost all applications of the same kind." This is annoying and it's a way of advertising the purchasable features.
Otherwise it's neat.