I have an old laser level. Three years have passed and you would think the technology has stayed the same. I was wrong. The difference between my old laser level and this one is stark. I put them both on a stand and this one is twice as bright. Also the beam spread is much larger. This covers almost 180Β° in space. My other didn't cover such a large area. In addition, it has a self-leveling function, which is very convenient. It will tell you when you are within the parameters of the self-leveling system. This option is suitable for both vertical and horizontal laser lines. It comes with its own case, which is very practical and beautiful, keeping it clean and practical. I read other reviews and looked at other products. I'm glad I chose this one