They have become considerably better in recent years, but I understand the hesitation. Once bitten, twice shy, and all that. I will say that my experience with Boox devices has been pretty good, though. As long as you don't expect it to behave like a full-fledged Android tablet. But above all, don't trust strangers on the internet.

Might I direct you to piracy@lemmy.dbzer0.com? Boox devices have a fantastic generic reader app which can handle just about any file type and is very customizable. If you are willing to navigate certain sites, you can get many books for free, and the Boox reader app is an absolute champ when it comes to opening them and tweaking the experience to your liking. It's more effort, without a doubt. But it's worth it for me personally.

Hmm, it sounds like you need to use something like Calibre to export all your books to a single standard format.

This is why I refuse to buy e-books with DRM. Amazon should have no say in how, where, or when I read my books.

ebooks.com has a searchable DRM-free section, so that's my go-to: https://www.ebooks.com/en-us/drm-free

For anything not available without DRM, I will pirate it without a second thought.

I just pirate everything I want to read.

I bought children of time and the subsequent books on paperback and immediately downloaded epubs

Personally the attraction here with the boox is the e-ink screen. I also use my phone for reading pretty much everything but e-ink would be easier to look at for longer sessions.