Unfortunately, the last time I was in STL, the first impression I got was stale deep fried food smell from the Wendy's (or was it Burger King) down at the beginning of that terminal.

On the other end of the spectrum, I flew into SMF (Sacramento CA) a few months ago for the first time in years. Everything was spacious and modern, sort of like SNA was 20 yrs ago, or DIA was about the same time.