The problem with that article is that the person that wrote it is a heavy Gamer.
Currently the biggest data hogs, after Samsungís implementation of Android, are games, Google Play movie purchases and a few other apps. Iím afraid to download all the games Iíve purchased and to store any Google Play Music on the phone.
So if you got a did get the 64GB you will have some of the same problems. The Great things about having a MicroSD Card is that you can always swipe it out. Have more then on. I never had any of the problems this guy is talking about and I have Games and Movies. Every one is different. You probably will not have the problems this person had.
From what I am hearing from my friend at Verizon and Rep in the mall for Best Buy Mobile The U.S will not be getting the 64GB. May be you can get an Unlocked 64GB Gnote 3 from over seas.