This has everything that a D&D adventure should have. Monsters leaping out of dark places, traps where players might not suspect them, puzzles to solve, treasures to be won and NPCs to help out - if approached in the right way. But what stood out for me when I reviewed the early draft were the intrigues going on among the wizards of the Gleaming Cloud Citadel. If your players like getting involved in uncovering and decrypting the grudges and motives of NPCs waging a cold war with each other then this is the adventure for you. Much polished since then - love that cover, by the way - well worth the cost given the work that's gone into this. I hope it does well.
[5 of 5 Stars!]