Agree it does crash even on IOS however the functionality in Australia is limited to what is available in the US.
I've used it for destination downloads, brilliant, and I've used it for finding cheap petrol, also brilliant. I'm not really sure how the time to destination works and how accurate it is and it seems to conflict with the native map guidance so not sure what's going on there. It is what it is I guess, if only saving you time trying to enter destinations when you get in the car then it's excellent.
