Ok, so far, I've had 1 random reboot (could have been anything, I can't reproduce it, but if I'm reporting things, I report EVERYTHING, just for completeness), I can't get root, I've tried on Titanium, and the native file explorer with no success. I can't find root options in the settings either. Other than these so far, it all seems stable. Only other things I could mention are more personal preference, and just plain nitpicky (F2FS, and the splash screen at boot being oriented for landscape). So far everything else seems pretty spot-on. No flickering, no force closing unless it's requesting root, it picks up on my 128G SD card, installs flawlessly, and no setup issues with GApps. It runs smooth, no jitters, no real lag, and is overall pleasantly responsive. I haven't tried any intensive apps yet, but I would credit any hang-ups in that area on hardware limitations more than software. You, sir, have overall a rather nice setup. All this, and I didn't have to disable all the extra bits that I don't use like calendar and contacts and other background apps that for me are just a waste on my nook! If I had the root issue solved, and could disable them, it would be even better!