I've owned a rm2 since xmas 2020 and really used to love it. I even brought an old obsidian plugin for it back from the dead. But the power button gave up 13 months in and they were dicks about it, and then when the pen nib holder disintegrated and they insisted it wasn't a known defect, I just gave up and it's been sat on my shelf ever since.
For anyone still into them though, a Lamy EMR pen coupled with the Wacom felt pen nibs (pn ACK22213) is an incredible upgrade which makes it feel like a real fineliner. Similarly, I found the various titanium nibs that you can get off amazon made it feel like a real ballpoint [0].
[0]: https://reddit.com/r/RemarkableTablet/comments/1545mn9/excel...