Rating: 3 / 5
Nice light weight unit. Wrist mount is convenient. Simple, intuitive user interface. Easy to operate buttons. Various displays well thought out. Batt. life, on alkalines, leaves a little to be desired, but using only 2 AAA it's understandable that batt life will not be that long. Optional WAAS capability. Plenty of memory for storing tracks and routes. In the open, acquires multiple satellite signals quick enough, and is able to retain them.
S'all good, right? Wrong! Despite all of the aforementioned pluses, all this technology is worthless if it can't maintain its satellite fix when under tree cover - like on the heavily wooded trails of the Northeast.
It's pretty useless if it continually loses its satellite fix. However, when it's functioning properly, it's a great system, especially the TracBack breadcrumb trail - pretty neat feature.
Since I've never used any other trekking GPS unit (only the Nav system in my wife's car), I can't compare it to others. I'm giving it a 3 for this reason, otherwise it might only get a 2 due to the aforementioned inability to maintain a satellite fix when under tree cover. It might turn out that an external antenna might improve signal reception? The hypothetical 2 rating would only be appropriate if other systems retained a signal better when under tree cover.
If used on relatively open ground where signal reception is more constant/continuous, I would highly recommend this unit, and give it a 4+, otherwise I stick by my 3 (or 2 if used mostly under tree cover).