I think rooting the HD+ makes everything much faster. I would recommend installing CM11. Everything is believe it or not more stable on CM. Not sure why the keyboard wouldn't work, I have never tried a keyboard on my Nook.
Rooted B&N Nook HD+ with Succulent's 7/2/14 CM11
Galaxy SIII with Stock, Unrooted 4.4.2
Whether you eat or drink or whatever you do, do it all for the glory of God.
Do your best to present yourself to God as one approved, a worker who has no need to be ashamed, rightly handling the word of truth.
]For I am not ashamed of the gospel, because it is the power of God that brings salvation to everyone who believes: first to the Jew, then to the Gentile.