Pros:
Great teaser movies (Totally sold me on this game.)
Cons:
Literally everything else.
You start your game (having to create a Uplay account, STEAM isn't enough) and are on your way to disappointment. Create your character (only one mind you) you have to pay real money to unlock any of the other three. Play through a GRUELING tutorial (seriously, I almost quit just because of the crappy non-optional tutorial). And away you go!
There is absolutely no plot or any kind of story at all; nor is there any form of character development. The Hero Skill system is laughable, providing no customization for unique heroes. Every Knight is the same as every other knight and so it goes for the other three one dimensional pay-to-play characters you can choose from.
Castle runs take anywhere from :30 (Beginner castles) to 10:00 (Higher level castles), leaving you feeling very unfulfiled and seriously disappointed in the 'Epic Loot'. Not to mention: your hero can't even defend your own castle.
The only redeeming quality would be Castle Design, but even that leaves you frustrated. You're given the opportunity to select a castle model and you're not given the option to restart your castle if you wanted to try another model. You're provided with one free castle theme, but in order to try any others you must pay-to-play in order to unlock them.
Designing your castle is as basic as it can be: Place this room here, place this trap there, & place this creature here. Simple and boring.
Traps:
The very definition of a trap is: 'any device, stratagem, trick, or the like for catching a person unawares.' However, you can plainly see where EVERY trap is located. What's the point of planting a trap, if it's in plain sight?
You are provided with a (very) limited number of traps to begin with, which can be purchased with in-game acquired gold. The rest require certain items to build; the item drop-rate of which is RIDICULOUSLY low. However, you can buy (Pay-to-Play) 'Item Packs' which provide you with more items than you would be able to find in a month of playing.
Monsters:
(View 'Traps') Pay-to-Play in order to create Low/Medium/High level creatures after you have exhausted your miniscule pool of gold-purchaseable creatures. Or, spend scores of hours on repetitive game-play attempting to farm the required components. As it stands now, I have roughly 55 hours of time invested and have been able to create ONE low-level boss creature.
... and why only Monsters? I'm fortifying a castle, not a dungeon. Where are the Knights? The Archers? Monks? Mages? Mercenaries? Not even a standing militia? Why are frogs and chickens defending/living in a castle!??!
Castle Rooms:
The only real difference between the many different rooms are where the entry points are located. Sure, some have pillars, some are wider, some are longer, but there is nothing truly 'unique' about them. There are no Libraries you can create, no latrines, no dinning halls, no barracks rooms, no training rooms, no torture chambers, no ball rooms, no archery ranges, no horse stables, no grave yards or tombs; no chapels, no game rooms, no bars, nor any dungeons or cells; no gallows, no rickety bridges over pools of lava, no towers to scale, no princesses to save, no secrets to uncover, nor any lore to discover.
[update]
Something I forgot to mention in my original review is all the annoying advertisements! Every time you log in, there are advertisements that pop up asking you to 'Buy this Special!" or 'Save if you buy this now!'. There's even a permanent icon on the left side of the screen that takes you to a menu of their current sales and pay-to-play content. Truly annoying.
[/update]
Conclusion:
Being a huge fan of both 'Diablo' & 'Dungeon Keeper' (two games which were directly compared to this one) I really, REALLY wanted to like this game. Why else invest 50+ hours in a game that is absolutely no fun to play? The pay-to-play aspect is beyond absurd; especially considering this is still in it's Beta phase.
I can't in good conscience recommend this game to anyone who isn't a glutton for punishment or has yet to mentally develop further than a four-year-old. Minesweeper is more entertaining.