Promoted features aren't available in Australia, Garmin can't or won't say why.
Apart from the the unavailable features the device froze upon turning off and restarting even more features were not working. The live traffic just stopped, track and trace stopped, basically the only thing it does is navigation and it doesn't do that very well

Maps are not accurate! Example Moorefeilds Rd Roselands https://goo.gl/maps/z39bhbuGZQc3uUPj9 there is a 3T load limit on the device that is not there for real... so device adds another 5Klms onto you trip to diverts around it. There are lots of street that are NOT Residential that this device will not use even though they are Not Weight limited streets.
This device doesn't know How to measure distance as you can select shortest route but it doesn't do that. It will stick to main roads. I think the developer of this software have been bound by ...

This thing is utter crap. I tried to use it today was hope less i ended up having to resort back to Google maps on my phone. Dont waste ure money like i did

Put fancy features (and there a lot of them) aside 780 can get you into trouble.
I used it in 60 t plus B-Double (it only goes to 60 t despite in OZ we go to 62,5 t and higher)
Despite latest updates it seem to navigate through areas where trucks this big shouldn't be, it doesn't use truck routes, it is constantly "confused", it will guide you through Calder by-pass heading up but will send through entire Bendigo heading back for some reason.
Garmin has Francis/Whitehall streets( heavy truck route) in Yarraville rated at 4,5 ton....
Afte...