This is depend on the maps not the program it self, Garmin is wonderful. But for now Map 9 Sygic is very good really, but not in every country. I tried in Cairo,Egypt it was too accurate and fast and wonderful, and i used in Kuwait was not accurate in many many areas. However, I think this is because i'm using maps of 2009 as they did not release yet the 2010 middle east maps. I believe that Map9 (Sygic) is better than Ovi maps came with N900. I'm satisfied with it.