This might be the only time I've said this about a Family Guy episode, but I actually felt the "A" plot was conceptually strong enough that it didn't need a "B" plot (Stewie and Brian's clones) to pad the time. Because of this, we only get a few brief scenes of Quagmire with the baby, so that by the time he goes to the adoption agency to give her up and has second thoughts, it doesn't have the impact it should've.
Yes, I know what you're gonna say: "Why are you expecting emotion in Family Guy?" Well, we can't really be expected to care about Quagmire having feelings for the baby if we didn't get to see much of him dealing with it in the first place aside from a few quick vignettes. That's all I mean.
Anyway, mildly enjoyable but nothing knock-your-socks-off. Despite being gross, I rather enjoyed the bit of animation when clone Stewie and Brian melt into a puddle of blood and skin goo.