The stylus doesn’t support hover, lasso, or eraser modes, which makes it a poor note taking tool. Look at Wacom solutions like the Cube i7 Book
The image below shows an example of how the stylus performs vs a Wacom tablet (HP 2740p). I drew a wave about 2cm high and then enlarged them to show the issues more clearly.
The top image is of the Chuwi, the bottom of the HP with Wacom.
Currently I’ve been using the hi12 for almost 1 year, able to take some casual handwritten notes, but only viable in OneNote Windows 10 (in OneNote 2016 it looked terrible and the experience had been frustrating.)