I have a caddytek caddyview 2 range finder. I play with others who have the name brand $300-$400 dollar range finders and I get the same distance everyone else does. The slope option does give different yardage as you would expect but I don't see a large difference in the slope yardage vs. actual yardage, but that could be because of the course I have available to me are relatively flat. This range finder does come with the option of non slope function as well, you will receive a small panel/tab that you clip on to the side of the unit for slope or non slope function. This can be switched in seconds and is very intuitive. It does have a "pin seeking" mode to it but I really can't tell the difference between the pin mode and regular. It doesn't buzz/vibrate when pin has been sighted so if you have some trees behind the green you may want to hit it a few times to verify correct yardage. It does have an adjustable focus which is nice and the optics I would say are up to par with anything else out there. Easy to use and switch between modes. Since this doesn't have the vibrate function or any way letting you know your locked on the pin it is a little more difficult hitting the pin from longer distances(say like 225yds and further). Overall for spending less than $150 I am happy with this range finder. I use this in conjunction with a GPS watch which makes it easier to rely on the distances given. if you are as budget minded as I am this is a good buy, you just maybe spending a few seconds more acquiring your target.