Our group ran this adventure using the Victoriana 3rd edition rules.
While we like the Victoriana/Heresy enging, we wanted the more adventurous and light-hearted tone found in Castle Falkenstein.
As has been stated previously, this adventure is, literally, a railroad that starts on a railroad.
It proceeds from scene to scene with the characters actions having little or no direct impact on the story.
That being said, there is ample opportunity for roleplaying and interaction with NPCs.
This adventure was a great introduction to the world of Falkenstein, a fine jumping off point for our games, and an enjoyable evening for all concerned!