The Mercedes auto system is quite nice, three 'auto' positions for how aggressive you want it to be. We often forget we've left it in the auto position (as opposed to off) during winter until it starts drizzling and the wiper goes just as I'm about to reach for the stalk. There are lighting situations which confuse it when it's misting lightly, and it will run the wipers before it needs to.

If Tesla is using the Mercedes system, it's a good thing.