I don't think I've ever read a story with these three together, trying to bring up the baby. And now I'm surprised that there haven't been more written!
They do make an unusual, but surprisingly good family, don't they? I loved the way that Lupin's name lost the "bloody" rather quickly, it's always nice to see Snape becoming fonder of people, however grudgingly haha!
This line was sums it up beautifully: Severus watched over Lily while Lily fretted over Harry, and Remus tried to care for all three of them, a new pack forming where the old one had died and been locked away.