Firstly, don't believe that Dungeons is a Dungeon Keeper remake. It's not. Dungeon Keeper was about massing armies of minions and then trashing the incoming heros with them. Dungeons is more about indirect hero management (very much like a Dungeon Master in D&D) and this is no bad thing.
Actually I prefer the concept of Dungeons far more than I did Dungeon Keeper. Are there enough piles of loot for hero's to find? Are they being adequately challenged by you minions? Is the dungeon decor affecting them? If yes then torture the statisfaction right back out of them! Maniacal Laughter(tm)
The problem I have with Dungeons is that it's seriously unpolished. Trying to target the correct hero with a spell can become an excerise in twitching the camera until you can finally get the cursor to select him. The early game generally moves too slowly and is the same process over-and-over again.
Your commandos need micro-management. They'll happily stand by and watch as the Dungeon Heart is destroyed next to them rather than attacking. Which becomes more of a problem if one turns off the horrible voice acting; then it's hard to notice the heart is under attack.
Imps sometimes can't be bothered to mine out walls - 6 imps running around uselessly won't mine a wall bang in the middle of my dungeon.
Autosaves are a mess, instead of saving at meaningful checkpoints they're sometimes saved on a timer. I've played for two hours in a dungeon to discover the last autosave was in a previous dungeon. Which bring me to my last point. The early game is tediously slow but the whole game could have been faster paced.
Unless you know what you're getting and are really looking to play Dungeons - The Dark Lord then I can't recommend it. Which is a pity; it had the potential for greatness.