While the graphic quality is of the usual excellence, some of the "Dragon Layers" are either mislabled or not right. For example, while trying to remove the skulls image from ANY of the lava tiles, it removes the entire image, not just the skulls. Your only option is to add or remove the 1" grid. Some of the other sets allow you to remove the key and registration marks to save ink. I would love to see this option in all sets.

As usual with Fat Dragon Games paper terrain and models, this set is excellent. I've only used a small portion of the set (3D Webs), but it will be indispensible for any future underdark scenarios that involve the drow.