Just got a Bushnell Pinseeker 1500 TE
Bushnell makes a Pinseeker that calculates slope and one that does not(tournament edition)
The tournament edition is legal in all tournaments and for rounds counting towards your handicap. The slope edition is not.
The slope is the change in elevation from your ball to your target. So say you are hitting a 150 yard shot and the green is 15 feet above you so it's an uphill shot. The slope edition will give you the actual yardage (150 ) but will also calculate the playing yardage (@165) to account for the uphill. This rangefinder is not legal for tournaments for handicap scoring.
I took mine out last week for the first time. Loved it on the range. The flags and signs were anywhere from 8 to 24 yards off. It was the first time I actually had an idea how far I was hitting it on the range.
On the course it was nice to hit a drive, go to the ball and turn around and shoot the tee marker to see how long.....errr...short I had hit it. I targeted the group ahead of me several times to see if it was safe to hit. The best function was targeting the far side of a bunker or water hazard to see the carry distance or the near side of the green.
My only problem was trying to figure out where to put the darn thing during my round. Somewhere easy to get to, but safe enough I'm not worried about it falling out of the cart.
I looked at a lot of rangefinders and the Bushnell Pinseeker was the best. Waterproof, fast, accurate, 7X optics (easier to acquire target), eye relief (can use while wearing glasses).
It was a bit more expensive than some but the best deal I found was on amazon.com. I got mine for $332 and got free shipping. This was a lot cheaper than anywhere else I saw.
Hope this helps