I have never owned a boa (yet), but from my experience they seem to be alot more active and curious then most ball pythons. They can be aggressive as juveniles but they seem to mellow out pretty quick.

Im pretty sure husbandry is quite similar, but they do get a bit bigger. Depending on your feeding regiment, they might get 8-10 feet long! Most dont get this big, but be prepared to house a snake that big just in case.