I bought it last week but have only played it a bit. It definitely runs better then the beta however once you have a couple hundred units around, it still slows down a lot. I have to run at the lowest settings to get consistently decent speeds in large games. I think there are a few things that need to be worked out but it looks promising. I have an E6600 and a 8800 GTX, btw.
My beef is that ground units are so slow and take way too long to get into formation. They get destroyed before they can move into position or turn their turrets to return fire. Units in the front become stragglers and are picked off easily, while units in the rear never get in firing range.
Also, a large, diverse army will still be annihilated by a concentration of one unit type, gunships, bombers, artillery, etc. It seems like the only viable strategies are to use a crap ton of gunships, or to sneak in a bunch of tanks behind the enemy base using transports. Defenses and air units seem far too powerful.
Can anyone post a list of special hotkeys and special interface tricks? Like how to attack-move, attack-move in formation, different ways of using transports, air units guarding other air units, stuff like that?
Also, has anyone with surround sound speakers noticed that all sound effects come from the rear speakers, and the music is much too quiet?