Summary: This is a great GPS, it's easy and cool. I found that it sometimes will take me a long way, more of the scenic route, however if you go somewhere the easier way it will just recalculate and take you there from your own directions. Great price, great purchase.
Summary: First off this is my 3rd Garmin GPS. I purchased a C340 for myself and my girlfriend and then after reading some of the positive reviews for the C580 I decided to purchase it and give my C340 to my daughter. What a mistake that was. I can't really knock the unit while it works.
Summary: Have purchased three units, one for my personal use and two for gifts. I was so satisfied with the one I bought for personal use that I decided this would make a wonderful gift. The gift receivers are very pleased with their Garmins.
Summary: I bought the Garmin 580 a month ago and I love it. I was moving to a new city and I was concerned about getting lost. I tested it out before I moved, by intentionally going the wrong way intentionally, and the GPS always put me back on to the path every time. It's easy to use, no complaints.
Summary: The primary purposes for purchasing this unit were to have real time traffic updates and use the bluetooth connectivity for hands free phone usage. Pros: The unit performs very well and is easy to use for navigation. The maps are up-to-date.