It was less than $20, What you expect?
Even Airsoft guys would say a $20 laser isn't gonna be all that great.
But as long as its adjustable for windage and elevation and mounts solidly and works it could be enough to be fun for short range rapid fire without taking your eyes off the target.
I own one i paid $40 for iirc and its nothing special either, But it works and its a blast to use.
In all honesty you and i both know to a certain point you get what you pay for. And most times you get exactly whats in the picture of the item you seen before you bought it.
I may replace mine with a green laser for a bit more ability to use it in daylight and hopefully its built well enough also.
