My friend has one and I got to try it a couple weeks ago. The writing experience is as fantastic as the article describes. But, the rendering of screens is slow and you have to look at bizarro artifacts for a second or two before a new screen is shown. This is... not great. But, I am guessing this can be improved on in future versions. I am waiting for a better/cheaper model to come out, but fully intend to get one when it does.

edit: clarity