I bought this rangefinder after considering a GPS device (skycaddie or garmin).  Too many of the courses I play were not listed and I decided I just wanted wanted something handy that I didn't have to download courses to.  I looked at several models and came down to the Callaway and the Bushnell.  I went with the Bushnell 1500 Pinseeker with Slope and I LOVE IT!!!  An amazing little tool.  A little pricey ($325 - $350 on the net), but it is a great device to have.  The slope feature is cool but I primarily rely on the basic distance.  It is VERY ACCURATE and shows you how far off course markers can be.  I walked off a 122 yard shot that the sprinkler head said was 139 -- the Pinseeker told me it was 124 and my rough step-off was 122.    Funny, now I work on my iron distances a lot more on the practice range rather than just going out and pounding driver too.... my scores have actually dropped, mostly because I practice differently than I used to.

In summary, I highly recommend this device.