Having gone through a dozen different reading devices, I can say that I prefer Kobo devices. They admittedly have a special place in my heart for being fixable after I soft bricked one by messing around with the OS via ssh - their "internal" storage is an actual physical micro sd card sitting on the board that you can pop out after opening the device. A kind stranger on a forum sent me a good firmware and a 'dd' later I had a working device again.
And you can turn pages by pressing a good old button standing right under your finger.
That said, at hardware level the Kindle is hard to beat.
I like to read on these so the UX outside the reading mode is minimal and perfectly justifiable. Nothing fancy but it gets the job done.