Hi, So my suggestion. Sygic developers are from my country and I know the people there. Route calculation algorithm was historically the best at Sygic Truck version 13.2.7, but that's it. Functioning as such does not have the iGO Primo. Algorithm for calculating routes in iGO primo is fine but with TeleAtlas maps, not Here. Of course TeleAtlas does not know house numbers. As for the TomTom GO, has in my opinion the best route calculation does not know the address, navigate well. In this go, I would go to version 1.9 or 1.8. So much for me after being tested navigations.