Heavy Gear II sets the standard by which all mecha based games should be measured!
I find that the keyboard/ mouse controls are pretty intuitive, and far superior to the default Mechwarrior layout. The configurability of each mech, including sensor packages, motors, weapons, etc offers a level of re-playability that other FPS/ Mecha games are lacking.
The multiplayer is a good addition to the game; many hours were spent on the college campus LAN playing against opponents. The biggest criticism for multiplayer is the use of homing mortars in combination with the more powerful sensor package: in multiplayer, if an opponent has chosen that combination, no other player can come close enough to fight said player, much less have time to spawn and orient oneself before the massive, mech destroying barrage comes raining down.
Altogether, Heavy Gear II is a fantastic game with lots of thought, great graphics for its time, and fantastic action. I would like to see its like in a modern equivalent.