GAF did pretty darn good in making an asphalt shingle look like some traditional slate roofs. With some decent color variation throughout some of the granule blends from afar you may believe this to be a natural product. However the tabs are repetitive and you can tell it's not real. On the plus side it's no where near as heavy or expensive as a traditional slate roof. Will install relatively quick, isn't to hard to cut, and nationwide availability although usually a special order.