I've had the rm2 for a few years now. I recently installed toltec and koreader and I can now sync it with zotero with the zotero plugin. Reading 2 column pdfs in koreader is a much better experience and I also like the dictionary search when holding down a word. I just use the regular RM software as a disposable notepad now. I had to downgrade the RM software to get toltec, but I don't feel like I'm missing much from the latest update.

That Zotero sync seems nice! I wrote a daemon that does a (one-way) sync from a Zotero folder to my reMarkable that works pretty well, but it's rather hacky.