The descriptions here are all very accurate. The first time you see this attraction, demand to be put in Row 1, Gate B (first row of the middle section). This attraction has very pronounced good seats and bad seats and third row offers mostly views of dangling tennis shoes.
The attraction works by accentuating the queasy feeling people used to get in CircleVision. The natural sense of movement you get is helped by the movement of the seats (the movements rather limited actually). And having your feet dangle 90 feet off the ground makes everything seem off balance to start with. Theses forces combined add up to a fairly good simulator effect.
The success of the show system is really dependent on the film. Fortunately, Soaring over California maximizes the flying effects. Flying over the Sierras around Lake Tahoe is great. As a travelogue, it leaves a little to be desired. Without captions or a narration, most out-of-staters just see a lot of pretty pictures of coastlines, deserts and trees. The show ends with a fireworks display over
Disneyland itself (violating a maxim of moviemaking), which everyone recognizes.
The queue line is extremely disappointing, yet another victim of budget cuts. The exterior line is nothing but switch-backs under the monorail track. Inside one hall is decorated with photographs and text signage about Californias impact on aviation. Then more blank hallways.
In short this is a good, solid D-Ticket attraction.