Kotaku: "Set during the original Gundam series, this multiplayer third-person shooter reenacts some of the biggest battles in the One Year War, with six people siding with the Earth Federation and six with Zeon. But is this first step into the world of free-to-play gaming a worthwhile one or is Gundam Battle Operation just another example of 'you get what you pay for.'"
No, it's kind of awful. Especially compared to Gundam Senki. Wonky controls, pointless game mechanics and the fact that you'll spend more time waiting to play than actually playing....
Even free-to-play, it's not worth playing. All the more so if you've got Senki or EXVS.