I was not a big fan of CivRev, was lacking in the depth that I enjoy so much in the PC versions. If your new to the series it may be just your thing and a good introduction to Civ, but if you've been playing and really enjoy the PC version you may want to think twice before getting it. I wouldn't say it was a bad game, but it wasn't for me and I did take it back to the store.
There was no religions, corporations, and the maps were tiny. Also I found that there was no real need to build anything but a baracks and possibly walls in any of your cities as the benefits of anything else never seemed to be enough to make the time it took to build them worth it.
It also seemed the only way to gain a victory type other than domination was if you had already pummeled your opponents into submission, which to me just seemed to be a domination victory anyhow.
I did like the new take on the culture being affected by combat, but culture itself didn't seem to play as big a roll as in Civ4. I also thought that the ability to see into a city and what units may be there as a unit upgrade was a good addition.
I was also suprised at the lack of unique units/buildings for some of the civilizations. I believe there was at least one that had no unique units, and being there arn't that many civ's in the game, and only 5 playing at any one time(4 human, 1 AI), you'd think they could have done a little more in that regard.
Probably the biggest problem with the game was the lack of diplomacy, you would have thought that a game for consoles emphasizing the multiplayer would have been a top priority, but games just went so fast you couldn't really afford to take the time to start diplomatic talks, not that you'd have been able to do much even if you did. The only thing you could trade was tech's, and the AI was more than happy to declare war on you if you didn't give in to every demand(you had no ability to negotiate). Also when playing multiplayer, if an opponent did try to contact you, and you were attempting to back out of another menue, his message would pop up just in time for you to hit the back button and close the diplomacy screen before you knew it was there, or who had even sent it.
Overall the game did not impress me, was it terrible? No, would I recommend it? No. Again probably a good game for people who are new to the series, or younger players, or even those that don't like the depth that the PC versions offer. But for me I'll stick with the PC.