At least these seats were on the Chiefs sideline because the view wasn't all that great unless either the Chiefs or Broncos scored. (The score ended up 10-6, not that exciting).
Nothing much to say about these seats. I've been to more Chiefs games than I can count and there are a lot of places you could go wrong at Arrowhead Stadium in terms of seating. I would stay away from the top level if possible but the top level is a great place to sit if you want to see a live game for cheap.

I would also stray from the end zone seating behind the field goal posts. At this stadium, it's extra hard to see the opposite side of the field, I guess the seats could be angled a little higher. But I have been to a few other NFL stadiums around the league and I would place Arrowhead in the middle of the pack. Not terrible, not great but the atmosphere is really where this place gets it's reputation.