I'm getting ready to board my 127th flight segment for the year. All but 7 of them have been on Delta Airlines. I missed a grand total of 3 upgrades this year domestically and lucked into two international bumps to the front of plane because of oversold situations in the back. I had my bags lost - not that I check bags very often - a grand total of 0 times. I did not keep track of on-time percentages but they weren't bad...I would guess in the 90% range. It is easy to complain about what the airlines do wrong and how hard it is to find low level awards, but Delta did a great job for me, a butt in the seat traveler, this year!