Gets along with children: No
He is not at all aggressive with children, however, with no children in our immediate family, he has never been properly socialized with younger children (teenagers he's fine with). He will generally bark at kids and not really want to be around them. Because of his deep bark, he has been known to scare younger kids unfortunately.
Gets along with other dogs: Yes
He takes a little time to warm up to other dogs, but once he's warmed up to them, he enjoys being around them and remembers them the next time they play together.
Gets along with cats: Yes
He is SUPER gentle with cats, and does well to get a read for the specific cat. If the cat doesn't want him around, he steers clear and respects the cat's space.