The pieces look really cool, but I think I'm going to pass on this one. Don't get me wrong, I think the buildings look really cool. I just don't think the cost to actual use ratio is worth it for me I just don't think I'd use them much. Also, with the Dungeon and Cavern pieces Dungeon Gray worked just fine. These tiles wouldn't look good unpainted.
Looks like I'm going to have to order their previous tiles if I want some new pieces.