Unlike other sets in the Dungeon Tiles series (Hidden Crypts, Arcane Corridors etc) this set does not match the typical grey tile style of the others. This set has a more Egyptian, pyramid, feel to it. With several sarcophagi, steps, skeletons and other "tomblike" elements.
The tiles are yellow in colour, and so they do not match seamlessly with the earlier sets. Also the set is lacking the usual 8 squares by 10 squares sized tiles which act as the centre for most rooms (instead there are several 8 x 8 square tiles).
However despite these little problems, the "Dire Tombs" set is still very useful. Great for giving a dungeon a different feel to the constant grey of the earlier sets, and there are some brilliant tiles within (such as the throne at the top of a set of stairs, great for any climatic Mummy Lord combat!)