There's no better baseball experience than at a minor league game. The stadiums are intimate, all seats are close to the field, ticket prices dirt cheap and players giving it all so they can get a shot at playing in the big leagues,
Coca-Cola field has a dated feel particularly when compared to some of the newer minor league stadiums (Louisville, Oklahoma City, etc.). But it is still a fun place to see a game. Your best bet is to get tickets on game day ideally at least an hour before game time. The best seats are just $13 to see the Bisons and you should be able to be right behind home plate (if you buy on line service charges push the prices to $20 each - not worth it!).
The Bison also put on a good show. Lots of in-game contests and there are fireworks post game on Fridays.