Night vision and automated parallel parking, while useful, will hardly save anyone any time (assuming you get better at parking with practice).
Unless, of course, you go through areas where boars and deers regularly cross the road. Then it saves time and money.
But what you will get is more and more autonomous features until there is the first fully autonomous production vehicle. And this Mercedes is one of the first bigger steps in this direction.
I've started using the park assist feature on our car just for the fun of it - what amazes me is how accurately it parks. Only annoying thing about it is that it won't park on the "wrong" side....
Only mention this because it wasn't documented in my manual and the sales folks had no idea.
In practice i find it's too slow to use, doesn't account for high kerbs with its preprogrammed trajectory (not user adjustable), happily dry steers and can be fooled by a squinty parked car in front of the space. Not a fan yet, but has potential, and if it means ill come back to less dings on the bumpers I'm all for mandating its use ;-)
A better system today is the Toyota reverse parking assist with guidelines overlaid which adjust to your trajectory based on current steering input and speed.