I have lived in downtown omaha/old market going on 3 years now, and I absolutely love it! yeah, dealing with all of the husker fans and and even hawk fans can get old, but the city really does have a lot to offer especially as it is really working hard to improve itself with lots of development going on all over the city. the downtown/old market areas are kind of experiencing a mini boom right now with lots of new apartments either going up, or old buildings being re-purposed into apartment complexes (once 16th street is done, hopefully downtown o will really take off). in addition to the housing developments, there are so many new restaurants and shops springing up all over. there is always something going on in the old market/downtown no matter the season, so being able to walk out your door and not have to worry about the drive or finding parking is very nice.
I also want to echo some of sentiments from previous posters in that the midtown, dundee, benson, and aksarben areas are all really nice and experiencing revitalizations and growth of their own. i was a bit hesitant about moving to omaha after living in monterey, california for the previous three years, but once i was settled in and began trying to take in as much of the city as i could, i realized how much of a gem the city really is. my love for the city has only grown from there. if you have any questions regarding a downtown/old market point of view, don't hesitate to ask.