i have only just bought my 430,i used it to get me home from chatham to manchester area,it did this without fault and i think it was much much better than other in built sat nav systems i have used.i especially liked the split screen when it shows the road you are on,then it gives a close up of the junction or turning you have got to take to continue your journey.plus it gives it's directions well before so it does not come as a surprise,unlike the one in my rover 75 which was utterly useless.