... not good.
I wanted it to be good. But it's not. I have just over 500 km on my Platinum (although it was delivered with 230 km - which is another story) and the Nav system is... well... it just stinks. There are so many streets and roads that are not on the map, that it is all but unusable in the areas that I use it most (including a small city).
So what I've had to do, is place my trusty Garmin 2595LMT on the dash, to the left side of the steering wheel (there is a small shelf it fits nicely on), run the power cord across the dash and over to the power plug in and use it. Deadly accurate, regularly updated, user friendly - (none of this applies to the onboard Nav system of my brand new Nissan Platinum).
As an aside, on the centre screen, there is a little box that shows how far the next turn will be and the direction of the turn. It works great - once. After that first turn, the only way to get it to show the next turn is to cancel the navigation entirely and reprogram the same destination. It works ONCE, then fails. Sometimes the box stays black, other times it shows 0.0 km to the next turn and stays that way until the route is cancelled.
Oh well... what should I expect for $42,000+ ?
But the Garmin is great!!