What stands out first is the quality of manufacture. Compared to competitors, we feel we are more in the pro range. It is very accurate and super convenient because you can take it anywhere. The laser is powerful, we see even in daylight. The one-button menu can be a bit confusing but you get done quickly. The only flaw is the stability. If it is placed on the floor to take a measure of such ceiling, it is difficult not to move by pressing the button (which is quite rigid). Suddenly, the accuracy may no longer 1.5mm ... It is because of this that I do not put 5 stars. But I highly recommend this purchase!