Helper/reference software

No.5138175 ViewReplyOriginalReport
Just saw this and was surprised to see how much it managed to raise in such a short amount of type.
https://www.tumblbug.com/3dmasterstudio/?utm_source=twitter&utm_medium=share
What do you think? would you use this kind of stuff? It's tracing all the way.
Is there any software you use for reference? I know of Daz and DesignDoll but I'm curious to see what else is there.