So I've only really been able to get my hands on my 2 XL this evening after spending most of yesterday evening setting it up. I'd love to put up a detailed review but I don't think there's any shortage of those. My initial impressions are it's a great feel in the hand, love the front firing speakers and screen is awesome!
The speakers themselves aren't any great shakes, they're very good but not great but I just love the fact that when using the phone I'm not blocking a puny bottom firing speaker with my finger, that really was an annoying feature of the XL and basically every Samsung.
The screen is great. Yes there's a little blue shift but it's seriously nothing I haven't seen before to some degree. I tend to watch A LOT of YouTube on my phones and for that, and basically any media consumption, the screen is fantastic.