Well, I received not a repaired unit, but a brand new dc-30 collar from Garmin for my Astro unit.
It seems that Garmin has made quite a few improvements along the way also!
The aluminum plate that fastens the gps unit to the collar is now flattened on both ends, presumably to protect the dog's neck from abrasions and sharp edges.
The nylon collar material itself is thinner, making it much easier to thread through the buckle... Something that can give a handler fits when trying to apply it to an excited, squirming dog.
The ON/OFF button is slightly raised, and a bit more pronounced.
So, other than being a bit more user friendly, and acquiring satellites a bit faster, it's still the tool we've come to know and love..
The tool of choice for location fast moving, and big running gundogs..
The Astro system receives the "Black and Tan Bombshell Seal of Approval," for producing a great product and standing behind it. For those that don't have the system, you owe it to yourself to try it!