The xda forum details how to root it. I think buttonsaviour will be a must install to get a back button. I have the 6" and the screen is excellent. But I use an Onyx now. But you can get a Nook real cheap and root it and put nookmanager on there. Works good. Way better than the default software.
https://forum.xda-developers.com/t/h...ght-3.3802331/