I have a Libra2 because I like (and probably need because of dexterity issues) buttons.
I use mine inverted (buttons on the right).
I bought mine from Walmart, but I had to get my cover (kwmobile

) on Amazon (I also use kwmobile cover on my Aura2.)
I do not use WiFi to transfer books from any other than the Kobo store (could not figure out how to download direct for other than Firmware).
Obook plugin is your friend for those
Kobo Utilities for Calibre to keep backups of the Kobo DB (and old Firmware, there have been need a couple of times

)