Watched the IGN review and it looks fun. The only RTSs I have played were a bit of Ages 2, a lot of Outlive (Brazilian Starcraft ripoff-ish thing) and I think Spore doesnt count.

I'm curious to try a more modern approach to the genre, considering that I've tried beating Outlive for 2 or 3 times but always abandon it after a while because the pacing is a bit too slow and I'm a bit too bad at it