IMO the only gripe I had with it was the lenth of some battles against the AI WOW! I had one game going for 17 hours!! before I had won! you just have to pump out units and keep a supply chain going, I liked it because you had huge ammounts of units to use and command unlike like C&C3 where it was just shiny graphics and Kane *not that I don't like Kane *
in general i did not like the gameplay..thats the one thing you mentioned.. you just had to pump out units non-stop to get anywhere... was not my style...
never played the game online or against humans, maybe its a bit different, but overall the gameplay wasn't for me