I bought the pure and although I liked it, I found it too thick and unpleasant to hold. It didn't work with most of my cases, not because it bubble up or anything, but because of the thickness. Like didn't like using my favourite case (spigen ultra thin air) because of it. I got a replacement iPhone and had to take it off, which I don't mind be has of the lifetime warranty. So I got the nano slim and at first I loved it! It looked just as nice as the pure, and had rounded edges, so i didn't need to use the home button stickers that came with it. Now, I'd read about how the oleophobic eventually would wear off, but I thought it'd be gradual and I wouldn't notice. There is no oleophobic coating at all, it's almost worse than a bare screen and way word than the pure. It's a trade off I'm willing to make however, it's thin and works with almost all my case (aside from my diztronic matte case).