After my first CO trip as an elite (silver), I'm 2/4 for EUA. One of those surprisingly was CLE-IAH. Was e-mailed both times.

Mrs. motnot, also silver, went 0/3 by EUA, including the CLE-IAH that I was upgraded on. The elite agent I called to check if EUA had upgraded (out of town, no e-mail access) said Mrs. motnot could stand by at the airport. Upon check-in, she was upgraded. So 1/3 overall.