I have been buying laser line and point levels for many years, and have gone through several Bosch, a Spectra, and even 2 PLS lasers. The Lino is by far the best engineered out of the group, and has the brightest points. Usually these devices have a margin of error that you have to be aware of and plan for. I checked the lino for "square" using the 3-4-5 method with the hypotenuse at 80', using a starett 100' tape. I found it to be dead on, which was a first for square lines out of a laser. It was also check for level and plumb and found to be perfect at 100 ft level and 50 ft plumb. I found my favorite laser, and a new company to do business with. Check out some of their other products too, they make some pretty cool stuff.