My $.05 worth,
As for the Stadium, it is very cramped..... I read somewhere this year if they were building by today's code they would lose like 15K worth of seats to have adequate space between fans. It is old, it is pretty much just a concrete structure, no brick, little in the way of beauty, but its home.... unfortunately it is on the national historic register so they really can't refurbish it, the new sky box on the west is actually a separate structure that does not touch the old original building, the end zones are not on the register so they can be remade if they choose to but they are still end zones, how much can you do with that?...... the new north end zone is very nice but it is still the north end zone, ya know?
Lincoln itself is not as bad as I use to think it was, I now travel Lincoln multiple days per week and I have gotten to know where to look (and you do have to look hard) to find good food, good bars, maybe even a little culture. Traveling across town is simply awful, there is no good way to cross town through its heart, Lincoln is a town you need to travel as a wheel with spokes, going around it and cutting in to where you want to go. Lincoln gets a bad rap as a farm town (and it kind of is) but if I am not mistaken it is either the biggest or second biggest B12 city. I refuse to defend Lincoln to any of you as I really don't have great liking of it myself, I have gotten use to it and have found some nice things there. If any of you traveling in for the game want a heads up on anything, pm me, I would be glad to help.
As far as the fans go, for the most part you will be treated well, most of the fans sit, and will ask you to do the same (unfortunately) because they are frankly... old. The students will be the most disrespectful of anybody in the house (good CU fans should be able to empathize with that). The stadium will go to sleep during tight games as we are use to dropping them the last couple years. it is actually louder for blow outs. Good quality opponents will get the crowd up, last years Texas game was very loud. Mid level opponents that keep it close (i.e. Baylor for example) the crowd was a non-factor and provided very little in terms of home field advantage. Are there A-holes? yep, I have worn visitor colors to Baseball and Basketball events (I am a CU fan, Creighton) and most of the razzing is honestly of a younger generation, I think that is probably true across the land, not just Lincoln. In this day and age of me me me in sports the fans are displaying the same behavior they see on the athletic field of play IMHO. Personally I enjoy mixing with the traveling fans, have had multiple great times with visitors. I think if you want to find a bad time you can absolutely find it in Lincoln or any city for that matter. A smile goes a long way when on the road.
Anyways, that is probably more than you wanted to hear but I felt like typing.