A Review is difficult, i bought it cuz of Anime Boobs, but i got much more than i expected.
The Game is not Cheap, but worth it.
The Basis Game is absolutly enough for a couple of hours and you get a Full Hack'n'Slay Game with a nice View.
It has Anime Sequences and much Dialogs (in Japanese, but subtitled (and the translation is very good))
All Characters have sexy voices
3 Difficulty Modes
A good enough long Story with much Jokes and Ironic
The Dress Room is dangerous xD You can spent more time there then in Game

I also bought all DLC's so let me say you what i think:
You need the Mission Pack and Dual Blooming Hearts for having much more Missions and some of them are really difficult.
The Outfits are pretty useless xD They are looking all Nice of course, but .. there is a Nude Patch, what i want with Clothes? xD
The Characters you need to know by yourself, they are very optional, because they even have no own Story Missions.
But i love Ayame xD