I've never raised them, but neighbors had them for a few years.  They lived a decent distance away, but the peacock could constantly be found perched on my back deck, waiting for either peanut butter cookies or cat food!  I personally love their cry, but it is a bit irritating in the middle of the night.  Maybe not irritating, but startling.  They'll roost up in the trees, on your car, anywhere.
My experience, which again wasn't really first hand, was that they can be pretty darn mean.  The cock who used to visit would go from sweetly eating out of my hand to trying to peck my eyeballs out.  And they are not small, so when a full grown male tries to come after you, it's enough to make you tuck tail and run!
All that being said, I'm sure that like any other animal, with the right handling that mean streak may not be dominant but it is there.  I would love to have peafowl.  One day soon, hopefully!!