That'd be GREAT!
WELL. I just beat ACE3 and being a first time player to the series I was pleasantly suprised.
The number of mechs is mindbogling but I doubt you'll wanna use more than your core 3 for upgrades.
AWESOME ost, beautiful voice acting from some of my favorite characters, the cell shading works very well, and the mecha animationis are a blast.
BUT the gameplay gets a bit repetitive of wipe out carriers, drones, protect mothership, and fight boss.
Overall I'd give it a 3.8/5.