I bought the game and was quite excited to get playing, so as soon as I got home I put the disk in and played. I gave it a couple of hours (got through about 4 missions) and the game hadn't really left a brilliant impression on me.
I was quite impressed by the graphics, especially the water effects which look amazing
Personally I found the controls to be extremely awkward. I found it quite easy to move the selected unit around, but it was selecting specific units, or groups of units that I found to be quite tricky (especially when you're getting blown to pieces by enemy bombers from above).
Admittedly I didn't go online. I bought this game at the same time as a friend and we planned to play online together, but after playing through some of the story mode we both decided to trade the game in.
Maybe I didn't give this game much of a chance, but either way it's not really my cup of tea. I expected a good solid war game, but got something that was targetted at younger audiences.
All in all, I think this is probably a good buy for casual gamers or younger gamers, but not something to compete with it's contemporaries such as Command and Conquer.