I love the pens on this app, no complaints there. I much prefer this for the pen experience to Onenote, which was my go to for my surface. I am now on the galaxy flex, and the palm rejection is iffy on this laptop for some reason with onenote, so I tried samsung notes. The s pen works much more seamlessly on it. I primarily use the pen, so that experience makes me want to use the samsung notes, but it has huge drawbacks:
I love pretty much everything about the pen. the fountain pen is great for cursive, the highlighters are great, the color groups are revolutionary for someone who loves having matching cohesive colors.