Pros:

very good game play
the area is amazing
all the tanks and witches make a good challenge
the slide, pool jump and cart riding were very fun
great finale

Cons:

too many tanks on stairs and unavoidable witches
it does not make much sense
too difficult at times, i had to restart 4 times and skip the end of chapter 3.
the area can trick you

Conclusion:

good campaign. i would give it a 80.