As someone in college trying to take notes, having infinite scroll is absolutely amazing! Like if I start a topic like Half Wave Rectifier, I can note down everything from its diagram to its applications in a single page which feels much more organized to me.
My other favourite feature updates include pinch to zoom and to navigate the notebook, landscape mode actually going landscape (this one drived me crazy on day one)
My not so favourite one is the Text update. Because it pushed the eraser down, I used to always press the text by mistake. If I get used to it on notebook when using in PDFs that text button vanishes.
Should be optional, hate managing scrolling in eInk