Summary: The battery it came with was dead on arrival. The unit would not operate. The seller refunded my money, thank you seller. I did buy another battery for it and it worked briefly. The problem with this unit was that it overcharged the battery to an extremely overheated condition.
Summary: My wife bought for my birthday the Explorist 500 several years ago. After playing with it a while I decided to buy the MapSend Direct Route 3.0 for street mapping and it worked ok, not great. The software wasn't cheap and when I got it the unlock code didn't work.
Summary: This is a great GPS for geocaching. It works well with geocaching.com and a Windows PC. Do not attempt to use it with a Mac. I could not find a single third party piece of software that would work with Mac. If you have a PC, like most of the world grab one of these.
Summary: I bought this back in early 2007 and have used it for hiking, driving, flying and just finding my way around when I visit new places. I also use the track log a lot to see where I've been. Pros: - Generally very reliable. Never had it crash on me. - Battery lasts a long time.
Summary: I purchased the Magellan Explorist 500 used on Amazon and after reading the instructions and a little hands on use was able to upload maps from the Mapsend Topo 3D and DirectRoute softwares to an SD Card and then to the unit with no problems.
Summary: very accurate very easy to use and battery last forever ... i'm very happy with it and would advise anyone to buy it. tons of info about the product online .................................................................