I am, after a couple of months of heavy business travel, about to achieve Silver status on US. I will probably hit the 25k BIS miles and the 30 segments at the same time, later this week. (Hard core!) What would that get me, if anything, if I were to fly on another Star Alliance carrier? Early boarding? Free bag? Nothing? US has the most flights where I am going but there are some other *A flights going there. Just wondering.