My husband needs a gps for his nature of work where he goes to his clients houses. Oahu is a small island that you can say we don't need GPS here but there's so many streets, usually we scan a local map book before he go to a certain place or I print out a map quest but it's a lot of hassle. One time we used his phone GPS system that we found out it's so convenient and expensive for their one day service. I decided to get him a GPS device which is same brand of his marine GPS.