I just picked this up and I am pleasantly surprised with the depth and quantity of material provided with the maps to use in my 1st edition adventuring. The publishers key is built in a way that the GM can see at a glance the specifics of a trap or door. The publisher has gone to great depth to provided samples to showcase exactly what one is buying. I gave it a good review, because it is exactly as advertised.
While these maps are not done in a photo realistic manner, if they were the DM would loose the management tools provided in the map keys. I for one look forward to seeing how these are received in my gaming group.
[5 of 5 Stars!]