So, I've read it and want to talk about it here :p (spoilers ahead) the storyline in itself I thought was fine, the rush in the last chapters wasn't really a problem BUT, I do think they overused the emotional and dramatic moments. And like, that entire ending arc of them just changing limbs around like it's legos... that really threw me off, the series could've ended on chapter 29 with mistress getting her mother's limbs, waking up to Kaede next to her and things sorting themselves out in a more relaxed pace, that probably would've been more impactiful than dragging it out like they did but well, that's just what I think of it, very enjoyable series otherwise. I recommend it but do be aware that it's about some sensitive topics.
I agree that the whole Lego limbs things is ridiculous at face value, but I have read it as a deliberately grotesque metaphor for narcissistic parents having kids only for the sake of living vicariously through them, at the cost of said kids' everything. This is a very Gothic story in that way.
That said, the last few chapters could have definitely been streamlined more: I get it that the author wanted to show how Fuuka has grown past her Wants (revenge + return of limbs) by sacrificing them for her Need (continued relationship with Kaede), I think there were easier ways to establish that. As written, Kaede's fear of losing Fuuka has actually cost the latter her last chance at getting her limbs back: if they had just waited a bit longer until her mom's corpse was delivered, everything would work fine, but Kaede's insistence (against Fuuka's express wishes, one may notice) on giving her her limbs had ultimately made Fuuka's body unable to support any more surgeries like that.
Oh, another fun thing I noticed: Fuuka's ninja maid (who has not appeared in the chapters available on DS so far) wears gloves with the same distinct design as the Demon Lord's horns from the author's other series. Coincidence or a hint at a shared universe?
