My close neighbors have had two Rotties (one at a time, 80lb and 90lb) and they are absolutely the sweetest dogs for a family ever. If I had fewer years on me I would have one.
They have both come over to play with my Yorkie frequently over the years, and are so kind and considerate of his size it is amazing.
You have acquired a wonderful dog. He will love you for giving him a good home and defend it and you with his life.
"Peace is that brief, glorious moment in history when everybody stands around reloading". Anonymous
Earp: Not everyone who knows you hates you.
DOC: I know it ain't always easy bein' my friend....but I'll BE THERE when you need me.