I use it mostly to take notes in meetings and as a scratch pad. The small vertical separation between the surface and the screen and the replaceable tips make it feel _very_ close to writing on real paper.
For PDFs, I found the first-gen processor to be too slow to be practical. I doubt this has improved much.
The e-Ink screen can make flipping through past notes a bit of a pain. For reading/later reference, I prefer opening the notes on a real computer via the desktop app/cloud sync.
I did not order the ReMarkable 2 because I felt the upgrades were not worth the price. While I would love to have an eraser tip and USB-C, it _is_ still a very expensive gadget.
I love mine, it is a great motivator for doing more reading in addition to helping keep my notes organized. Especially for reading academic papers, it is great to be able to easily annotate and then actually keep my annotations, which I haven't found any other good solution for.
I also decided to preorder a 2 because the thing that breaks immersion for me the most currently is having to switch to eraser mode. I may still keep my 1 as well though, because as another commenter mentioned the biggest slow down is trying to flip back through notes on the device (even using the zoomed out view it can be quite slow with larger documents). I have been working through a few math textbooks and am actually looking forward to being able to have problems open on one tablet and the book on the other.
Yes, I love it. I have tried numerous workflows to keep notes including Evernote, NValt, Devonthink, Bear, Agenda, Moleskine, paper...
This beats them all. Yes, there are software quirks, some huge gaps in the system (cut and paste between notebooks), but it's always available with no friction.
I have one (1st generation), and I'd say it's ok, but not great. The hardware is actually quite nice, but the device is held back by the quality of the software. My main sticking point is that it's impossible to move writing to the next page, something that I want to do all the time: rearrange my handwritten notes. Using Goodnotes on the iPad Pro is an infinitely better experience, except for one really big selling point of the ReMarkable: battery life and outdoor use (in the sun). You can keep it in your backpack for weeks and not worry about it. The friction of the pen on the writing surface on the ReMarkable is also quite a bit nicer, although having a Paperlike screen protector on the iPad helps
