I just got my 600 last week and took it caching. It worked great, easy to follow, etc. I also have the Colorado 300 and the Oregeon 550 and I like the 600 the best for caching so far. My only complaint is that it freezes up! You have to pull the batteries to make it shut off and they behave again. I spoke with Garmin this morning and they said this is the first time they have heard of this. They offered to replace my unit if it does it again. I had the same issue in the beginning with my Colorado, and eventally they had a firmware update that fixed it. Our local GPS store here said that the 650's are delayed as they are having issues with the camera....