I prefer a flat, flush form factor like with Kindles, tablets, other eReaders. I'm also really not sold on the form factor with the button handle.
Libra 2 - slow old CPU, looks sluggish from what I've seen from reviews. And I manage all my books with Calibre, no need for direct downloads, and going online with it breaks sideloaded covers anyway. but I hate how ad-driven the UI is, even without ads (I've always paid to remove them, but recent UI still feels like they're always trying to sell you and integrate their serviceS). I use Amazon, do buy books there, Kindle was my first eReader. However, all of them have major caveats to my mind and are putting me off since I already have a Paperwhite 4 and a Boox Nova 2, and I don't need a new eReader, just kinda want one, still looking for the 'perfect for me' device. I'm considering a new eReader and torn between the Kindle Paperwhite Signature, the Kobo Libra 2, and the Kobo Sage.