The two biggest(perhaps only) problems with Miller Park are 1) There is absolutely no air circulation in the stadium at all. Miller Park turns into a sauna for most afternoon games. in July and August. 2) Although almost all seats have good sight lines to the field, a large percentage of the seats do not have a full view of the field. I wonder if they could throw open the doors to the stadium, if that would improve the air flow. My wife and I sit on the club level behind home plate and we are luckily in the shade after the first half inning. Even with that break, my wife has often commented that she didn't think she would be able to make it through the entire game were it not for the occasional cool breeze we get from the air conditioning coming from the open press box windows. (Honorable mention to poor concession service as a problem, although I don't count that as a problem with the stadium per se, as much as the workers staffing the concession stands.)