Summary: This GPS is a great help for any kind of GPS work you would need to do that didn't require you to be any closer than about 20 feet. Within 20 feet is is inprecise. I've found that the altimeter needs regular calibration to be accurate as well. Too bad it doesn't come standard with an A/C adapter. You'd think with all the money you're paying the least you would get is an A/C adapter!
Excerpt: 20 years ago if you'd told somebody that you could give them their position on the face of the Earth, accurate to within 5 metres from a bunch of satellites 11,000 miles above their heads they would have looked at you a bit odd. Even 10 years ago when the technology was available for civilian applications a GPS receiver was beyond the reach of most people. Within the last few years however, GPS has really come of age for the non-military user.
Pros: Robust, Easy to use
Cons: Buttons in awkward positions, Has the potential to leave you stranded with a flat battery