The main house unit doesn't track forward, but is largely the same, just smaller. Delia's closet/bedroom is just a smaller unit on the stage left side with the main show drop, which opens on one side, paged. Similar for the father's bedroom, just on the opposite side. On Broadway, these were units that rotated from the backside of the attic set.
The rooftop is smaller, the exterior of the house is just a projection, the lack of the lift has been mentioned. Mostly everything looks pretty solid, just smaller, and more movable. The only thing that I thought looked cheap were the Beetlejuice face and hand puppets, they are much more 2D and look cheap.