Although mine came with KitKat out of the box, if i am not mistaken, it will, after two weeks of declining the update, will install anyway, in similar vain to how iOS 7 finally forced itself onto my iPhone 4 and made me hate it (i hate flat design!).
Although other than all-white status bar icons (really, Google?) it changes **nothing**. none of the things that make KitKat what it is (ART, Immersive Mode, etc) are there. other than status bar icons lacking color, it's still Jelly Bean, but with a different version number. was the update necessary? nope. should it be forced by Verizon? without choice? hell no!. Verizon has the app 'SDM.apk doing the OTA updates, so you cannot set it to not check like on other carriers. it forces the update on you eventually no matter what. after two weeks the 'install later' button will grey out and it will only let you install it.
Now, on the Note 10.1 2014, you get some of the S5's new Touchwiz. on the Note 3, you get the S3 UI, lose the light effect lock screen, the polish returns to the icons and system app UX, sorta turning backwards but i'm always in for more polish, although i did like the light effect over the S3's ripple.
As for all the doom and gloom regarding SD Cards, it seems Samsung has overcome it, as i have zero issues accessing, deleting or changing anything on my 8GB MicroSD card.