This is an excellent point to begin your paper terrain collection. With 9 buildings, all with multiple texture choices, you can have anything from a small village to a thriving city built in very little time with just this set. And since the upper floors, extensions, and roofs can be swapped around, you won't have to worry about a cookie-cutter look.
This set is another using FDG's fold-flat style of construction, which makes storage much less of a problem than it otherwise would be. The system works well, as the building pieces fit together easily, and a constructed copy of the entire set will fit in a drawer 13"x10.25"x3". That is a lot of GM's toys in a small box.
At $15 it is one of the more expensive sets FDG, or any other publisher of 3D terrain, offers. I also feel that you will get your money's worth and more.