dfw to phx on jan. 3. 540p departure. number 3 on the list, only 1 seat showing as available on app. I boarded and got settled in my exit row seat. about ten minutes later to my surprise, I got an alert for a new boarding pass and a new FC seat. waited until boarding was over to swim upstream. they even paged for me on the plane. bummer for the dude sitting next to me, he was number 4 on the list. was worried I won't have any overhead bin space by this point, but luckily there were was some space still available.