The 3D was immersive, did not overpower the film, and the glasses were not cardboard. The ~3 hours sped by. The plot was..a plot - nothing groundbreaking or breathtaking, but enjoyable.
If there was a downside to the experience, it was waiting almost half an hour after the advertised starting time for the film to begin. The ~3 hours of movie went by quickly, but that wait to even start had us all champing at the bit.