I have used this level to install boards in a large room and also to check the relative height of the landscaping in my yard. The light green dot is clearly visible, the laser has a nice body and feels solid, and the accuracy is definitely good enough for what I imagine most DIYers would use it for. As a test, I verified the accuracy of this laser using the control points that I know are aligned and it hit the target squarely. The vertical laser is useful for centering furniture under lighting fixtures and so on. For the price I would definitely recommend.