The art goes hard. The game is hard. I'm hard.
Each update makes the game better overall, I'd say. All the arcade/challenge modes don't feel like an afterthought at all and offer a great change of pace along with plenty of refreshing gameplay opportunities. Even the current unlocks system feels inspired. I do wish there were 'more' parts of the game where the difficulty could be considered casual, but I do have confidence in the overall vision so far. There's a looot of content.
I don't have much standards for story in a game that I play explicitly because I love boobs more than anyone should, so I'll just be blunt. Just how erotic is the overall game going to be? Are the tags final? I ask because I absolutely would love to just suck these girl's tits right up and I'm not sure if that's planned. Some people may want paizuri, lactation, etc... It's up to you guys. As an artist I'd go apeshit with the prisoner concept.
When all is said and done this will absolutely be able to stand on its own outside of booba, but we all came for booba.