As you read reviews and guides on GPS products, here are a few tips to make sure that you will get maximum benefit from it. For one thing, only buy GPS from companies that regularly update their software and maps.The whole point of GPS is to help navigation become an easier task, therefore if the data and maps are not updated regularly and easily, then everything becomes a moot point. In general these updates should be free when you buy the GPS unit.It would be great if there were automatic reminders that updates are available so you don’t need to manually check every now and then.Another area of consideration before you buy a GPS product, is it’s level of customizability. You do not want to get something that doesn’t allow you to configure the settings and such to your likings. Usually a global positioning systems unit will not work 100 percent the way you would like for it to work for you, therefore configurations will be inevitable.The ability to instantiate revisions on the go is helpful as you may need to make changes to your route from time to time. Having a detour mode is also a very beneficial component to the overall package.