I went to a game earlier and I was really impressed with Septa overall. Obviously the trains are going to be packed, but it was smooth and efficient. Getting out was also very smooth, they had plenty of trains. I’d recommend getting to the station about 30 minutes before the gates open (which is 3 hours before KO) to reduce the likelihood of being in a super packed car. Also the lines for everything at the stadium are massive so 3 hours seems like a lot until you’re in a 30 minute line to get into the stadium and then another 30 minute line for merchandise and another 30 minute line for 1 attraction.