I printed this, and indeed this needs to be scaled up a LOT. I used 600% and it still printed out way too small, so I suspect 1200% might be about right. This model also needs a support behind the neck, or your first few layers will deform like mad, puddle up behind the model until it is finally fully supported, and then it prints fairly well.

I printed one.
You have to run it trought netfabb and scale it up like 12 times.
I used Black PLA, 0.2 Layer Height, 0.15 infill, with Supports