It's pretty common in Korea to have your parents move over into the same building when grandkids join the equation. Even though an extra pair of hands would sometimes come in handy, I think both my wife and I appreciate more the fact of not having them around all the time, even though we love them.

And I second @cryotosensei that most of it is linked to my wife's mood and by how much she tolerates having my parents around. This can vary from day to day~~

I like 相见好同住难, it's an easy one to remember: "meet good live together difficult"