We recently saw a showing of the Edge of Darkness at the Burke Baker Planetarium. We arrive about 15 minutes before the showing to purchase our tickets ($9/adult) and wait for the doors to open. The process was very easy and the staff was friendly to us. The seats were pretty comfortable and had that slight lean so that you could look up somewhat comfortably during the show.
After we sat down and waited for the show to start we (and everyone else in the room) felt very dizzy because of the pre-show screen saver that played on the screen. It was so bad that we closed our eyes and the people in front of us got out their motion sickness arm bands. I don't know if the guy in the back was controlling the screen or not, but it kind of seemed like he was doing it.
The show itself was not the most interesting thing I've ever seen... kind of boring and repetitive actually. We would have preferred to see a different show, but this was the one we could make work with our schedule that day.