Examples: it sucks as an ereader, even though the hardware is super capable of it. It doesn’t have a built-in dictionary to look up words or check spelling. You can’t make links between documents or to different pages in the current document.

Their hardware is top notch, but I found the software to be so hamstrung that I returned mine after a few weeks. Basically, if you want to have exactly a physical paper notebook experience but with a computer, it’s great. If you’d like to transcend the limitations of a paper notebook and take advantage of the nice hardware to organize your work, or do literally anything but write or draw, you’ll be sorely disappointed.