I live in Oz and bought a Navman at not insignificant cost. The plan was to download (the paid for) European maps for a Uk/France trip.
Navman has a Filipiino help desk which is useless so I literally spent a day working out how to download the Euro maps. Navman is no longer a US-owned company and the new owners care zip for customer care.
On arrival in Nice we had to switch from the Aussie to the Pommie (!) accented directions as we fell about laughing at and couldn't comprehend the Aussie spoken French street names,
That said it worked well in France where it was invaluable leaving central Lyon for the airport in the predawn darkness.
I have previously had experience of Garmin sat nav in hire cars in Denmark and France where we were taken round in circles and not always small ones! We didn't have that problem with the Navman.
Incidentally en route to Lyon airport that morning, we also successfully used the hired Mercedes' sat Nav to 'calibrate' with no contrary instructions.
Wanting to avoid mega costly data charges overseas I avoid using my iPhone so can't compare them with Navman.
