I have been quite tempted by the reMarkable2, but reviews like this are the ones that make me think twice.
When I got an iPad Pro in early 2018, I was of course taking all of my notes with it - from meetings, to ideas, to task lists. At some point I went back to paper and the iPad was relegated to ideation. Exporting is not great, in an ideal world there'd be a fast export of PDFs, but I found myself emailing them or Slacking them to myself to share ideas.
The iPad's screen is glossy and gets finger grease onto it, the 1st gen pencil isn't the most natural in the hand. I know you can get matt screen protectors, but I like to use the iPad as a tablet. There's no substitute for paper, but I do find indexing and going back to ideas more challenging.