Following online tutorials you can custom build windows which was important for my project, I am using some very large windows - simply scaling a small window creates a disproportionately large frame -better to design your own and this software offers that. Furniture in this context does not just mean chairs, it can mean shelves, mirrors, toilets, freezers, kitchens and outdoor plants and even windows and doors.
I would encourage serious users to also upload the furniture library software which enables you to create your own custom furniture library to share across projects very easily.
Comments: As an ex pro software developer I am a hard critic to impress but really I love this product, it is absolutely ideal for my project.