Very good - pacey music, great firefight effects. The manual tells you enough, but no more. Overall look and feel is well-crafted and polished. Fast and furious action.
Battles have excellent sound effects and fun speech.
Good computer AI, which apparently doesn't cheat. Your own units will behave reasonably intelligently. Easy to replay individual levels, with high-score for each. For playably smooth SVGA action you need a Pentium. Your robots insult you when you lose.