Tested lots of ROMs, if not all, that are available for the Nope 3. AOSP, TW based...
Best look, performance & speed - AOSP cannot be beaten here. And even if some FCs happened until I setup an AOSP, after that there's no hiccups, even on nightlies. Fire up ART runtime, and the speed gets to disgusting levels, but it's like a car, the faster you go, the more likely the crash.
Pure stock TW is ugly as hell, but coming from Samsung themselves, it's stable and everything works. And there ARE people who use the S-Pen every day. o.o
Also, it's probably the fact that I can't properly set up the kernel on AOSP, because the ugly slow TW gets me more battery life than AOSP. And I go tinkering with the kernel, and USB stops working, FCs, and other s**t. :/ I need to learn more on the topic, probably...
Currently, using Audax ROM with stock kernel.