The game is a hack and slash RPG that we reviewed back in September. The only real criticism of the game was that it was somewhat easy, but our conclusion was very positive:
Overall though, Dungeon Hunter is a blast. Until Blizzard releases an iPhone port of Diablo or Microsoft does the same with Dungeon Siege, Dungeon Hunter is a great alternative. If you like slaying monsters, earning experience, doing quests, and picking up an obscene amount of loot in the process, Dungeon Hunter is the iPhone game for you.
Gameloft has also released a Lite/Free version to try.