I bought the first W3D edition via Amazon and loved it! It had it's quirks and such (addressed in the errata) but it was enjoyable and educational nonetheless.

This update comes at a great time; I hadn't known he'd released a DOOM version of the book and found that out a few weeks ago. But certain situations have left me to wait on purchasing it.

Now with this update, I'm glad I waited. I can't wait to get my copy!