It does move; just not very far or very fast. Maybe I was a little hard on it. The food was great and the experience was too. Just don't expect much sightseeing and be ready for extras.
Just keep in mind; its a historical dining experience, not a train ride. We had ridden the Durango-Silverton Railway and hoped it would be something like that, only with good food. Lots of reviews I've read lately really knock the Zephyr. In perspective it was an enjoyable evening, one just needs to know what they're getting into and I think my review gives a pretty good idea.