Make sure to wash the parts as my experience is the mold release agents stick around and impact paint adhesion. Also, sawing or sanding wear a mask. Thin parts like joy sticks are extremely brittle so care in separating from the pour stubs. Otherwise it's great to work with, easy to trim and sand and all paints I've tried work great - enamels, acrylics and oils. CA or epoxy are required for assembly.