I've switched from Paperwhite to Kobo (Aura I think?) and the highlighting feature is really making me miss my Paperwhite.
1. I can't highlight text across pages.
2. There's also an issue in which I navigate to some highlight and the text gets shown in a dark grey against black background, making it nearly impossible to read.
3. Since I can't highlight text properly (thanks to issue 1), I can't simply extract my highlights from a book, so I have to manually type it on a laptop, which is a painful experience thanks to issue #2.
It's easier to hold with dedicated page turn buttons, good lighting, and fast screen response time. Also water resistant and good battery life.
So far I've been able to get all the books I've wanted, mostly from the Kobo store, but it can work with any open format.