Yeah. You can plug your 360 into the net and play against PC players. I think that's why they left out some of the options/commands on the pc like Patrol and some other moving commands.
tactics are a bit limited - i saw it at a friends house - but i think that even games like C&C generals are better balanced ... and games like starcraft offer a whole lot more long term enjoyment. graphics weren t all that great, too. - looked much like supreme commander somehow ... just a bit more colourful. - but then i might not have seen enough of that game. ( pc version )
To be honest, I still quite like it because of that. Didn't realy miss alot of commands and the graphics were fine if you ask me. Hell, the graphics on starcraft 1 are fine by my standards. Balance? Well, yeah. The Masari/Atlantians are ment to give everyone else the finger and go NO U to the Hierarchy, hence their power I think. They can be defeated however, not that hard.
Overall, the game's atmosphere is quite nice. Don't judge the game when you're playing the prelude though, since that kinda fails.