I don't know if this version was improved, but I remember enjoying this game, and dying a bit inside for every day I had to wait for it to come out. It was the perfect homage to classic Mecha anime and related cartoons growing up. Custom mech combat, 3 combat territories, support vehicles and buildings . . . it was what games like C&C and EARTH 2100 series games wanted to be (at least visually). Nothing like a long range combat with twin gattling arms, cannon torso (or legs), and Jet legs (or torso). Or on the ground, your gladiator of a combot with power sword, power shield, shielded body, etc. Loved that aspect of the game to all ends.
Sound: This is 2 parts, sound track and sound effects. At the time, I loved the sound track (sounded like military mixed with marching band). But, the unit sounds in the game are generic with most of the unit sounding robotic and lifeless.
Gameplay: Pretty good and fluid, even with the 3 levels of conflict (air, land, subterranean). The underground aspect was interesting to be sure, but was kinda meh, even though you had to for resources. The other two were spectacular, putting the mechs against each other on land or in the sky.
AI: The AI was competent, but there were times that it seemed to "cheat."
But that aside, there were bugs when playing this game, which I hope have been addressed in the GOG version (I remember getting deadlocked in the campaign a few times, or the Neuropa missions being unavailable even after putting the CD in). So, even if you skip the campaign and go to the quick play or multiplayer, you'll likely see where the game truly shines. May adjust my review pending on the GOG release.