I just started using Nuvi 350, it is very easy to use and the detail of City Nagivator of North American NT v8.0 is excellent. The algorithm of route calculation is not as good as Tomtom because there are not so many chioces but is good enough. The performance of screen is better than TomTom Go 910. The main issue of NANT 8.0 is the numbers of builded in POI are not quite well. I will suggest that buying Garmin's another product " The MapSource® Points of Interest : North American".