I had the Garmin 64s and was an excellent machine - never a problem and battery lasted great
I then purchased the Garmin Oregon 600 - super expensive for what it does, has a lot of features that I dont even use, batteries dont last long at all. I wished that I had of purchased it with the lithium ION rechargeable pack. Standard AA's no good
Maps were all over the place - needed to update the firmware via Garmin Express - re-initialized
Set breadcrumb trail - after detecting and checking the data when I arrived home it appears that I had crossed a major highway while I was walking, when I was no where near the highway.
Happened to a fair few other people, a guy in Europe was taking an 80km bike ride and needed to log his times, distance etc for documentary and the Garmin showed that he rode through the baltic sea.
Apparently the 600's were a hit and miss when first released. As for features wow
Now I just use the SUN
It does work ok now after installing the new maps. But the Garmin 64s beats this Oregon 600 - and the quad helix antenna pretty responsive
I pretty much turn it on, mark my location then turn it off and away I go, just for that added safety if I need to turn it back on to find my way back to vehicle or campsite. Also plenty of spare batteries just incase.