This is still in the review process, but there's already an update XD
I changed the background of the room to match the graphic theme of Multiscreens, you can see a teaser here.
More importantly, I adjusted the default scale of the screens :). They used to be these massive things, but now they are about the size of a typical computer monitor which makes things seem more real. For example, if you are working in room scale, you can put a few windows on one side of the room and a few other windows on another side of the room and walk between them.
You can also resize them and the changed sizes are also remembered upon closing and opening Multiscreens.
Right now there is no Vive Controller support, and keyboard support via keybindings exist but in my opinion it's kinda gross, so at the moment using an Xbox controller works best.
I've been working a lot on getting you to be able to change focus and move the windows around using only your mouse which should make this more natural/usable for people, so hopefully that should be ready in a week or two.