About 48 hours into the Xbox 1, playing mostly COD. A few thoughts:
I really liked the 360 controller but this new one is simply fantastic - the grip on the thumb sticks is my favorite touch
Voice commands take a little getting used to but they are (will) be a game changer - the ability to record your favorite moments on cue is pretty amazing
Graphics are improved but not the leap forward I was expecting after 8 years between generations - next holiday season...