Not bad at all for a small little device. I genuinely didn't expect much out of it but its a nice range finder, especially for the price. The battery lasted all day and did show sign of needing to be charged. Glass is clear and the distance indicator is easy to read. The buttons are on a bit backwards tho. So once its powered on, you press the "M" button to go through the settings you want and once youre there you press the power button every time you want to take a fresh measurement. Plus the small size is a plus if youre taking it golfing