It is my understanding that Mormons believe: Jesus and Satan are created brothers. That God wasn't always THE God. That we can become gods of our own planets someday. And as JK's post above alludes to, they don't believe in the trinity and that Jesus is not God.
Having said all of that, what few Mormons I know or know of are good people.
Having said all of that, what few Mormons I know or know of are good people.