Our own JP games expert Heath Hindman thought highly of this game as well.
If you're wondering whether this us import-friendly, the review mentions:
"This is easily importable for anyone of any Japanese level. If you can’t understand the story, there is a fully localized English version of the anime available. To see if you dig it, give it until at least the third episode. (I was skeptical myself after the first one.)
As with many Japanese games, the menus might take some trial and error here and there, but honestly, there aren’t many menu items to begin with. Within the missions, objectives are fairly obvious, and there are tons of visual cues if you somehow find yourself confused… which you won’t. Even setting up Battle Royale mode and taking the challenge missions can be done without knowing a lick of Japanese.
There is no extra equipment or items of any kind. Tanks have varying stats, but the stats are in English, written as ATK, DEF, MOVE, and HP and given a rank A, B, C, etc. Plain English, right in there as the default in this Japanese game. No worries.
Tank gameplay is self-explanatory. You don’t need to know Japanese to get through this game. And if you do speak it, you’ll love it all the more."