And more than twice the price.
All you have to do is put up some boxes at the corners of your room one time, and then plug them in. They don't even need to be connected to the computer in any way. They are small, and silent, and nonintrusive.
I get that it's not the best user experience, but for a thing you just spent $1,000 on? I'll take a couple of boxes and better tracking over no boxes and worse tracking any day. I never saw complaints like this over the Wii sensor bar.
If you're spending $1,000, what is 20 minutes setting up lighthouses? As far as I'm concerned, it barely even factors into the equation.
If you move your desktop PC around often, I can see why the Index or Rift S would be a non-optimal choice. I don't think this describes most people.
Edit: just noticed you said Rift S, maybe you meant the Rift? The Rift S doesn't use sensors, so moving it to another room just requires re-calibration in the new room, I believe.
Repeating setup if moving, and the sensors getting moved - from my experience it depends how much space you have available and how fully you have to utilize this space for VR. If available space is large enough, then I notice that it doesn't matter much if the boundaries get moved slightly, if I keep enough buffer between virtual boundaries and physical objects.