It's ok. Has strengths, and has weaknesses, none of which are extreme.
Pros:
-It's a trainer, that alone is praiseworthy
-It also has a bit of management mixed in with corruption. So, the corruption has some natural pacing.
-3 girls who all feel distinctive.
Cons:
-You never feel like you're playing correctly. You'll always be behind on energy, material, money, time, mood, etc.
-After a while, the idol shows feel like more of a nuisance than a good way to get money
-The corruption is done with brainwashing instead of the girls having their personality naturally warped. Plus, the girls flat out don't feel...human. "Boob rubs are routine? Annoying but sure" isn't ever a thing that should happen early on into a corruption trainer game.
All in all, an inoffensive game that has annoyances but nothing to really "hate" it. Play a bit, and if you like the first 30 minutes, continue. If not, drop it.