This is the only laser I've had so can't compare to others but this one works perfectly. You can have 1, 2 or 3 lasers at the same time. I have used it for hanging photos, mirrors and bathroom renovations. The fit seems perfect. I measured from different locations a few times while tiling the bathroom and the laser light was perfect in a 20x20 foot room. I've heard that green lasers are easier to see, which seems likely, but this red one can be used entirely indoors. Battery life is excellent so far. I used it several hours a day for 3 days without charging. The hole on the mounting hardware fits a standard camera tripod, making it easy to aim in corners and climb up.