I got a ReMarkable a couple years ago. The writing and screen experience were phenomenal, but the ereader UX and file transfer UX turned me off. I returned it within a couple days. I've been disappointed by how other eink tablets I've tried have felt since, but since 90% of my use is reading I haven't minded.

Doesn't that describe all eBook readers? I've owned a few Kindle and Kobo devices and meaningful improvements are never shipped to them. No actual performance improvements, no new useful features, nothing.

It's unusable for architecture drawings :/