We were at SeaWorld yesterday and did the reserved seating....I thought it was worth the $29 per person. We had front row seats for O Wonderous Night, 3rd row for Winter Wonderland on Ice and 4th row (behind the soak zone) for Shamu Christmas Miracle. I also walked on the Polar Express Experience without any wait.
Two things:
One - your show times are picked for you. This was our schedule:
6:00 - Clyde and Seaymore's Countdown to Christmas (missed this as we had Santa's Fireside Feast reservations at 5:30)
7:00 - O Wonderous Night
8:30 - Winter Wonderland on Ice
9:30 - Shamu Christmas Miracle
Two - if you have any mobility impaired people in your party that there are stairs at both the ice skating show and Shamu. My Mom uses a walker and I was assured at the information desk that there would be "reserved" handicapped seating but that was not the case last night. It was tough at the ice skating show because the seats were down near the ice but my Mom said the view was so worth the trouble. I did stop at the Information desk on my way out and the girl advised there is supposed to be reserved handicapped seating. She said she was unsure why we were not directed to it or she said maybe it was already filled when we arrived.