Oh, I played this one a while ago, and the gameplay really is quite terrible. It's not just the translation, though I can't imagine that helps. The gameplay is just... Bad. Simplistic and bad. I really wish I could be more positive, but honestly, there's nothing to praise about the gameplay.
It has about three different kinds of minigames as the core gameplay mechanic, none of which are particularly well developed, and which are mostly just tedious; a simple tower defense game, with four characters who take forever to kill everything, a car chase thing which takes forever to kill your pursuers, and an escort mission that takes forever to deal with.
Other than that, you're mostly just waiting for the weeks to pass, and occasionally dealing with a mostly decent minigame to raid enemy bases to try and recover blackmail sex tapes, only to find it's not the one you're looking for.
The artwork in this game is really good, though, so for people looking for porn, I guess I can recommend it to them. I might recommend they use a cheat for infinite money, though, so that they can bypass the game itself.
Ah, one point it's important to mention, however; new sex scenes between the main characters happen every month, and aren't tied to plot progression, so it's entirely possible to complete the game while only seeing a third or so of the game's sex scenes. The only way to avoid this is to deliberately waste your time so that the main characters can spend some time with each other.
People looking for some good porn (especially since aren't a lot of good games emphasizing yuri) might love it, but anyone who's looking for a good game should look elsewhere.