Well, it's unenjoyable. I can say that much about it, even after trying the co-op. And it doesn't get better.
This game is mediocre, and translating kusoge isn't exactly a popular thing... Tales of the Tempest non-withstanding.
However Bandai redeemed themselves with that Wonderswan Color SoM clone of theirs (Star Hearts). It's quite decent.
I betaed Tales of the Tempest.