I recently bought the ReMarkable 1 (wasn't willing to wait for preorder on the 2, and the differences don't look that significant). I kinda love it: I'm a professor, and 99% of my use is in reading article PDFs---it's a vastly better experience than reading on an eyestrain-inducing glossy screens or printing off.

One major annoyance, though, is that it's clunky to switch between documents---I like to take notes in a separate document from the articles (mainly so I don't have to deal with the hassle of trying to export marked-up PDFs, which is a very suboptimal experience---the ios/mac apps are, uh, not good.). There's a pretty big lag there.

But the reading experience qua reading is so much nicer that I keep it anyway.