We've had lots of inquires of how Max and Lila are adapting to having a baby in the house and so far, it's going great! We introduced them to Henry's scent by having them sniff his hospital hat. At the beginning, Max wasn't very interested in Henry but he's coming around. As long as someone is still tossing the ball, Max is happy.
Lila, on the other hand, immediately went to the baby and is very interested in every move and sound Henry makes. She inspects his nursery and patrols the perimeter when we are in there. She sits with us when he is nursing and tries to lick him every chance she gets. If Max gets too close to Henry, she growls at him. We joke that Henry is her baby :).
Overall, I'd say they they are adjusting just fine.