These are charming, very slick, textured greyscale maps, which would be absolutely perfect for most dungeon campaigns - especially where the DM suddenly needs a plausibly grand set of underground halls.
The maps feel professional, solid and deliberately absent of filler features (apart from pillars,steps and doors) making these an ideal blank base for stocking with details and denizens. Also if a DM wanted the PCs to traverse a massive empty area (like in much of the Mines of Moria) perhaps leading only to a couple of encounters, these plans are ideal, creating a sense of a dungeon terrain that will take a day to cross.
They would be compatible with most tabletop tiles or systems - especially since they've made the flagstones into a 5ft grid - the staple of all modern plans and battlemats - so a DM could adapt tiles he already owns. :)
These black and white maps are to the quality and standard of the one page dungeons by WotC used to include in Dungeon magazine and are at a pocket money price. Their simplicity in detail is their strength, allowing the DM to adapt them to his or her game setting. If you think that you're that sort of DM, then these are a bargain-"must-buy". :)
-Billiam B. http://bit.ly/rpgblog
Longer review inc. Vol II:
[5 of 5 Stars!]