Keep in mind there obviously is not enough seating inside for everyone, so a lot of people are standing at any given time. But generally, people don't just park themselves in a seat and stay there all day, they come and go, so I;m sure you would be able to find a seat for him relatively quickly. However, not all seats are that close to the TV screens, so you would want to get him there in time to get him a seat where he can actually watch the game if that is what he wants to do. There are also screens with other games going on, so, a lot to entertain you.
Only the top level has windows where you can see out to the field, the bottom level is nice and has a lot of seating and TV screens, but there is no view of the actual field. It is generally a fairly relaxed atmosphere in there and most important, it is climate-controlled. We mostly just stay in there for halftime, but I think it would be a great experience to watch the entire game from in there. But again, actual seats where you can sit and watch out the windows and see the game are very limited.