A must have for any RTS gamer. Great violence of action tactical moments in between strategic planning sessions.
The logistical and economic aspects of the strategic portion of the game really set this apart from any other RTS I've played, and because of that, it's refreshing.
Tactically, it's like any other RTS with groupings, drag select, and the like. Some units are designed to be better killers of others, etc. Hero characters are particularly flashy and fun. If used properly, can turn the tide of a tactical battle.
Overall, I'd say that anyone with an affinity for RTS would not be disappointed with purchasing this game.