Coler...I understand that you are hesitant about kingo due to all the threads and crap about them. But tbh, I did it to my note3 before any of that started on xda, then after it did, I searched thru nearly every single file, folder, xml file ect on my phone over the course of a few days. Even going so far as to decompile my entire rom and pick thru it and have never once found a single odd app, permission, situation where something was running that shouldn't ect. I honestly think the problem is the devs here that couldn't find a way to do what kingo did, got bent out of shape and started calling it malware. Yes, it's not open source and they don't want to reveal they're method, then again why would they when every other known method has gotten patched once discovered...ie loki, cf auto ect. Now I'm not in any way connected to them, partial to them, make anything or whatever just saying me experience.
As for mj5 i think it's pretty much the same, if not a little faster and smoother, I just hated the blue keyboard so I swapped back to the old white and silver. I absolutely love my note 3
Again just my experience and 2 cents
Mega