I'm a believer in the lasers for accurate measurement. I've had 2 Nikon 800's and they have performed outstanding. Use them for all my hunting from archery to rifle for deer, elk, varmints, everything. I've just found that the older I get, the harder it is for me to judge distance correctly. These units are lightwieght, strong, and fit in my jacket pocket. I can range an area when I sit down and put the unit away. Out west, range can be really deceiving. What you thought was 200-300 yards can turn out to be alot farther and that equals missed shots or worst yet, wounded game. Just my 2 cents.