Best part about sitting in these seats was being a few sections away from the tunnel where the Chiefs and Chargers players ran out onto the field. The cheerleaders all made a big assembly line to welcome them onto the field. It was really cool to see all of my heroes up close - been a Chiefs fan since birth. Sitting on the 5 yard line and seeing a few touchdowns scored was pretty neat too. You'll really gain an appreciation for the size of the players and the speed of the game when you sit this close. I would imagine being on the field in pads, the game would seem ten times as fast playing it in person.
All of the seats were colored orange - they should be colored red but all three levels had different colored seats so fans could distinguish the three levels.
I wouldn't say that there isn't a bad seat in the stadium because that's clearly not true; just walk into the place and check out the sheer size of it. The upper deck should almost always be avoided at all costs. You want to have a good time; BUY GOOD SEATS!

There are many points of entry at Arrowhead but if your tickets are for 115, go through Gate D which is on the same side of the field as the Tower Gate. Section 115 will be straight ahead and you won't have to battle any of the crowds.