This is a nice little kit that is easy to assemble. Since the windows are molded into the walls, you will need to take some care if you want to paint them contrasting colors. I masked them off to make it look neat. The interior is open and you can add lights and interior, if you want. I did. I have made 2 so far. The kit does not come with railings so you will need to add them if you want. I made mine from wood. All-in-all, it assembles into a good little kit. You can fill up a neighborhood fast since the house goes together easily.