If you're used to navigating 3d space in video games or whatever you can probably pick it up but my gaming group is almost exclusively non-videogamers and the idea of getting them to play games through this thing is just a total non-starter.
Also it feels like a bit of a slap in the face to game designers that every player needs their own copy of TTS (~$20 each) yet designers -- whose wokr and IP is the pretty much the whole selling point -- will see none of that.