I bought this GPS a little over a year ago, mainly for tracking the locations of photos that I take while hiking or traveling. The reason I bought it was that it was clear that it would work with any operating system because it just acts like a USB drive that you can get the logs off of.
There have been two things that bothered me about it. One was the battery configuration: 3 AAA batteries is an odd configuration; I had to settle for 6 rechargeables and a charger that charges two at a time. The bigger problem was that when I looked at my logs to correlate them with my photos, they showed that I wasn't moving at all for minutes at a time (as though the GPS wasn't receiving anything), and then I jumped to a new position, yet the quality indicators in the logs said the GPS was receiving just fine. I figured that it was just that the quality indicators were lying and for some reason it was having trouble getting a position in many of the places I was hiking. (I had myself convinced that it didn't work as well when the battery was low, so I was going through the annoying recharging of the batteries even more often.)
However, about a month ago I read some of the newer reviews on this page, and discovered that this is actually a feature called "Static Navigation" that makes all the GPS tracks have these huge gaps in it, and it can be disabled by installing new firmware. The process of installing new firmware wasn't particularly smooth: it required finding a Windows machine, downloading the firmware from the company's somewhat-sketchy-looking Website and running a pretty sketchy-looking piece of software (was it installing some spyware too?) that crashed the first 10 or so times I ran it and then finally worked as I tried starting it slightly different ways.
But in the past month, now that I have the firmware with "Static Navigation Off", the GPS records of my hikes have now become much more accurate, and I don't have to extrapolate between points to figure out where I took particular photos. It would have been nice if the device they shipped me a year ago worked that well, or at least if it had some information explaining how I could make it work better for my uses.
That said, the device is reasonably priced, and now that I have the SNOff firmware it does work quite well for what I want it to do.
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