Hi This is a great design app for those who love to design. The free edition is limited but theres enough to do with it. The pay for edition looks awesome but expensive and not worth it for amateurs. I would love to see if you could make it that we could design a basement, and more then 3 floors. I dont see why we cant have unlimited floors, even though its not needed. Maybe you can come up with an app to design commercial spaces, and recreational spaces, and multi use spaces, like spaces for the whole city. These are just my ideas but I beet others would agree. Other than that the app is great. Keep it up.