Initially I was very excited to see this mod and the new concept seemed so obviously better. For normal full cubes, this is clearly superior. Yes, the MTG screwdriver indeed has bad usability, so an improvement is so much needed.
But then I noticed a huge problem: Rotating becomes hard and inconvenient again if you have to deal with complex selection boxes. Because with complex selection boxes (like a toilet), you have to hit not only correct side, but also a side which faces the right way. Since this will change drastically after every click, you can no longer spam-click a node to quickly get to the correct rotation, but you must always move the mouse and concentrate to hit the right "side" of the selection box. Faces that face the wrong way willl be frequently exposed so it is easy to hit them and screw up. That's a problem because it means you still need to think when rotating.
And the push method might sometimes be useless if the selection box face is very small (like only on the right side, meaning you can't push to the left) and you must walk to a different side.
This issue could be mostly circumvented by games by simplifying their selection boxes but sometimes that's not what you want …
For many games, this will still be a massive improvement, but they can't have complex selection boxses.
Overall, this mod is still a thumbs up, because it is an improvement over the MTG screwdriver. I appreciate all new concepts of rotation.