I Would Have Rather Waited Longer.......
Problem - I understand wanting everything in 3-d, but they ruined the landscape. I hate the angled view of the map and I do not understand why games continuously move to that format. With the exception of Warcraft 3 I have never found it to be an improvement. Adding to the fact that enemies can now attack multiple different buildings throughout your province..... my opinion is that it just looks messy now.
Problem - They took away some of the details of management. I have seen some people compliment this feature but I miss it. The also have switched to a format with terribly small text on anything you try to read.
Problem - the instructions stink! I have mastered MTW2 ... played 100's of hours. Even with this experience I am confused on all of the agents and characters and what they do. The book gives you nothing, just tells you they make themselves.
All in all I just think that Total War has always kept a particular style that has made it so popular over the years and this time they changed it..... I hate change!