My wife and I played AOM obsessively, it's such a great game. There's a small time commitment, the AI had just the right levels of difficulty to help you work on your rts skills while still having a blast.

I always felt like the Atlanteans were slightly overpowered, but other than that the balance was pretty good.

The steam version is good but I kinda wish there were an update with low system requirements that fixed some of the bugs in the current version. It's the best LAN game ever.