I personaly know 2 out side hunters that lost dogs last year because the collars went out on them. Now these hunters hunt with quicktrack and the garmin collars. We also had one hunter had a dog get in a beaver trap and when the dog went under water the signal you could not pick it up. Traper called him 2 days later and told him what had happend to his dog. I would hunt with both!
I have the 320 with 9 DC 40 collars. I love it. Haven't any major problems with it. Haven't used it on the outside yet though. Of course u occasionally have trouble with signal but overall you can't beat it. There is no guessing to it. Like the man said above, you gotta take time and know how to work it!!
They are extremely nice to have, especially during field trials when you want to get on dogs quickly. The flaws are, if you are going to hunt on the outside you "must" use a tracking collar with it, the battery only last about 17 hours when fully charged. They aren't comparable to being as durable as the Johnon's or Quick tracks either. I have 10 collars and a 220. I think 6 of the 10 have been sent off for repair, and 2 of the 4 that haven't been sent in have had new antennas put on them. The other 2 are only about 4 months old. And I have also had to get a new gps. My system is just now about 16 months old and have had this much trouble with them.
They are worth every dime you have to spend on them when they are working correctly, but the durability is pothetic.
Garmin also ticks me off because they will not donate anything to our hunts. Johnson, Quick trak, and a few others have given lots of money and certificates to help us hunters out.