Well, it works... you want a fully rendered 3D skyscraper? You get one. I see now why the elevator system is essential to the building.
However, lots of things did not work for me. I could get the elevator doors open by clicking on them, but the cars never moved and the buttons did not light up. Flying/floating did not work either. So I had to go up stairs, around and around, that was annoying... other than that it was well rendered with nice textures and fun to fall down inside an elevator shaft and look around (not). I think it needs lots more work.