It depends on what you're looking for, really. If it's sexual content, that's very much a bonus rather than the main focus here. If it's a business sim, then it'll probably be mildly disappointing to dedicated fans of the genre.
As specifically an idol management simulator, though, it's pretty decent at this point. Chasing business while trying to maintain a consistent image, debating whether all that security is worth chasing off the fans at handshake events, questioning just how much your top idol is really worth, managing the talent, trying to handle personality conflicts... It's all present to an extent, and what's there works reasonably well.
But it's also clear that it will all be better a couple of updates from now, in my opinion. The game will really benefit from more events to help shake things up, so that instead of the occasional idol who would prefer to avoid political work, you have a stable full of idols who all have opinions on how they want their careers to go, and instead of everyone pretty much being friends, you have more frequent rivalries and strong friendships. I mean, these are mostly teenagers we're talking about.
In short, I think it's pretty fun, and only looks to get better - but it's very much a matter of taste.
I can already see potential in the Influence system, honestly. Set up one of your idols for a few staged scandals, fire a random stylist to clear her name, use the gained influence to put her in an even more obviously dubious situation, fire a seasoned stylist to gain even more leverage over her, then demand she sleeps with you. What, she's not into women? Well, that's why we're blackmailing her instead of flirting with her, obviously. Bonus points if there's a chance she goes to the police and you get a really big scandal out of it.
Plus the usual dodgy "Oh, you thought we only did gravure? Well, we have a partnership with an AV company as well, and your numbers have been really bad lately, you need to bring in some more money if we're going to keep you..." and casting couch plotlines.
Which isn't to say that there isn't plenty of potential for sweet love scenarios as well, of course. Just that the mechanics of the game already lend themselves well to some pretty sleazy scenarios.
