Have you ever used it.
I use one of those TomTom 300 kits and it's feckin awesome. You would not believe just how usefull it is.
Navigated to a hotel near to Old Trafford without a feckin' hitch. Anyone who knows the motorway system, where you go from west to east across north Engerland, knows it can be a real pain in the arse if you don't know the roads, or have a map reader beside you. Not just someone with a map, btw. Someone who actually knows how to read one and understand it.
SatNav ftw. However not if you only ever go to places that you already know. Then you're a cunt.