I really like the overall campaign. I know it's just an enhanced version of Risk, but for some reason i really love it.

Personally I think the battles can get a little frustrating/tedious because they usually involve multi stack armies clashing (sometimes several BIG fights per turn) that can take a long time, and when you've got your economy pimped up that don't always matter as much either.

I do like the early fights, when you're about equal in strength to your opponents and when a few extra losses do count. I've also enjoyed some custom battles, although I miss a purpose when fighting them.