@jc2e, you haven’t been here in a long time. An earlier communication of your experiences might have saved the user gbar some frustration. Maybe - but maybe not.
Well, I didn’t have any serious problems with flashing /e/ OS. With a Windows PC and Samsung Odin 3.13.3 I installed TWRP Recovery, then flashed the /e/ OS via TWRP. That went in no time at all.
That an elementary tool like the S-Pen of Note III N9005 doesn’t work to the same extent as under the StockROM Android 5.0 is very unfortunate.
At the moment I’m trying out the apps “INKredible” and “HandWrite”. More will follow… ;o)