It's been five years, but:
Excellent bang for your buck in terms of cost of living
Pretty decent art/restaurant scene for a city of its size (particularly in its region)
Midwest weather (for better or worse)- I remember a December which never topped 32 F and summers with humid 98 F at 2 am
Nice people, if somewhat clannish
Not overly congested
Helps if you are married; even the professionals wed very young compared to the rest of the country
Some very cool neighborhoods (check around Bardstown Rd), surprisingly large alt scene (if you have a stereotypical view of KY
Kentucky Derby and the Oaks- though I vastly preferred Thunder- has to be experienced to be believed
Pretty beautiful area- though landlocked- the Ohio River is NOT an exciting body of water
Still, lots of hiking etc.
Edited: "clannish" in the Scottish sense- stick together (newcomers as outsiders). Nothing to do with ethnicity- sorry, didn't even occur to me. Agree with later poster that, unlike Cincinnati, race not such a huge issue.