This puzzle is super cool to solve. Pretty challenging too, and there was a weird parity case that took me a long time to figure out.
Turning is fantastic, except for the middle layer in the 6 layer direction when the puzzle is not shapeshifted. For some reason that layer is super catchy. Once the puzzle starts shifting, the different pieces seem to free up the mechanism a bit and it turns fine. It is a little annoying when finishing the cube after you solve the shapeshifted stuff back into the nice box shape.