These tiles have become a mainstay of my fantasy adventures. I print them in color and put them onto cardstock squares for changing dungeon areas and mount some in specific combinations to make permanent or larger rooms/areas. My group has loved the new way of exploring unknown areas since it has more visual appeal than an erasable vinyl map with my scribblings on it. Since all of their tile have the same basic entry/exit points and are all based on 6-inch squares their products flawlessly interlink.
I have a large collection of SkeletonKey products and will be happy to keep adding to it with more of their excellent products.