An acquisition almost immediate satellites, calculations and recalculations fast extrêmements routes and judicious, monitoring navigation in tunnels (a must in paris for example), a multitude of interesting functions and settings, in short a concentrated benefits that found by combining multiple devices of different brands. 3 small complaints though not prohibitive: prepositioning Arrows taxiway not visible enough and a little short, insufficient memory to some calculations of cross-border routes even allowing tolls and no non-volatile memory for the coordinate format. But the price / quality ratio is still breathtaking. Device highly recommended!
