I got the 32gig.
After the system, and the apps i keep on the phone and a little music, i have a bit over 20gig available.
To me that is enough which is why i didn't go ahead with the 64gig.
I have the basic news apps and a few games, just my standard stuff. My work stuff is on google drive and i keep my phones pretty clean, meaning every now and then i move taken photos over to my laptop.
sent with my white Note5 with nonremovable back and no SDCard!