This model comes with lots of options for doors and windows to make it your own. My engines barely fit in the doorways so not sure if this would affect others. I would like to see more windows frames in this kit to add more options and in case they break. The window openings need to be fine tuned so make sure you have a file. And because this has such a large roof area, it was a bit difficult to get it to fit right onto the building. Good model that a beginner can do.