I have the Rino and I think it works reasonably well as a handheld unit and integrates the functions of GPS and radio pretty well. If you want a "real" GPS unit, you won't be happy with it and it's an expensive radio. I purchased one along with a few friends and I like to use it when riding my dirt bike because in addition to seeing where I've gone, it allows me to keep a log of distances , speed, and all the other stuff (since my moto only has a manual odometer). The added benefit is that I can see where some of the people I'm riding with are and communicating with them, too. I can use the same handlebar mount for my mountainbike if so inclined, but I think the unit is a bit heavy for that. It does handle the vibration and such without a hitch, though.