I have one of these. The writing surface is much better than I expected. The battery life is surprisingly poor though - not as good as an iPad, say. The inte

I have one of these. The writing surface is much better than I expected. The battery life is surprisingly poor though - not as good as an iPad, say. The interface has a few rough edges - you are limited to the size the pages presented to you and cannot scroll down for more real estate. On balance, I would say that I am broadly content with the device - I use it to replace the write-once notes, noodles and workings-out that I used to slay forests for. I did get it for the Kickstarter price, however. I would not pay a near iPad price for it.