First thanks to [Create Inc] for showinig the "magic" behind that.

This piece looks different when you look at it from one side and when you rotate it 180 degrese. 
It looks even more curious when you put it in front of an mirror :)

The best result would be when you print it with 2 colors. 
I printed it as 2 parts and then gued them together. (there are 2 obects in the model)
Use 3 perimeters for slicing and i suggest 0.15mm height.