They are in peanut heaven but your asking somebody that has season tix in 507. I love my seats and would not trade them for any seat in the house. Fans are more pumped up the higher you go (experienced the game in the lower levels also) and most importantly for me, you get a better overall view of the game. Give me the seats in the higher levels over the lower level seats anyday of the week.
Here's a seating chart: http://media3.steelers.com/heinzfield/seatingchart/