- The screen size is slightly smaller than a regular A4 or Letter sized sheet of paper. You can go to "Adjust View" on the reMarkable and choose a smaller region of each page to fill the available screen (i.e., get rid of the margins and header/footer), which increases the size a bit.
- Academic papers often have footnotes / references on the last page or two, and if you care about them you'll want to flip back and forth (or in some cases you may also want to flip between two separate documents), which is quite a bit more annoying on this device than it would be on paper. Using https://github.com/ddvk/remarkable-hacks adds some features that make it better.
On the plus side, on this device I feel more free to write on it and mark up etc (can always undo / erase cleanly), while on paper (even printouts, let alone books) I somehow hesitate a bit more.