The concept is cool but the execution is a bit rough. There's just a bunch of little piddling issues that make the whole experience a bit thornier than it needs to be. The mouse sensitivity is quite high for me, the movement speed quite slow, grabbing things is finicky, rotating them makes you drop them because mouse look isn't locked, jumping against the wall sometimes flings you upward, the fps isn't limited so my GPU is at 100% without reason, etc.
I tried to put the head on the monkey and it fell off into space and made me lose.
Pretty cool though.