Well I have a Model S and I can tell you that it does have the quoted range in the summer. Range decreases in the winter as it does for all vehicles - higher air viscosity, greater rolling friction... And unless you're waiting for a spot at a supercharger (which I never have) the charge time is around 30 minutes for an 80% charge. The nav system optimises your hops to minimise charging time and overall travel time. Sure maybe it does take a tiny bit longer, but it's fun as hell.