This is one of those games where, if you know the franchise, and are a fan of the setup, you'll be able to sink WEEKS of real time into the gameplay. Mixing and matching parts, min-maxing your build, and the Break Edition includes all the DLC, so you always have something to challenge yourself with.
Even better, there IS a plot here, and a decent one, not fantastic, but it goes places, with an unusual heft to the characters you might not expect. There's a reason the two leads of this one eventually came back in Gundam Breaker 4, which was more than a decade later in both real time and game time.