Summary: This is a great unit. My only problem is that is doesn't come with any book or instructions. You have to go to the Magellan website to get the book.
Summary: I purchased this so that my wife and I can use it for geocaching. It seems like a quality device, however, if you are a GPS user, it will probably be fine for you.
Summary: I was very dissapointed with this. It is just slow to change direction and pick up your location. We got it for Geocaching but it most places my cell phone does a better...
Summary: This is the third Magellan i bought. This does everything you will ever need for Geocaching. It has much better downloading capabilities than the Sporttrak Pro.
Summary: The magellan 510 gps is very slow at finding your position in thin growth trees. I would not recommend this gps. I also have a magellan gold which works much better.