I'm a current owner of a Ratta Supernote A5X. I use the Supernote all the time. I previously had a Remarkable 2, but thankfully Remarkable added a subscription which made me look elsewhere and led me to the Supernote.
This seems right up my alley. Although, $800 seems steep.
The new Supernote A5X2 is due this year... at probably half the price? Granted it doesn't have the 60fps display, but it definitely has a bunch of other features. Is the 60fps worth $400 more?