Myself and my wife seen one up close and personal about 20 years ago an a dark highway in the middle of buttfuck nowhere.. It was not fun, it was scary, it was very mentally bad. I would not drive at night anywhere outside a town for a couple of years. The wife still does not like to talk about it. It really changed our outlook on the world/universe.
They are real. They do visit this planet. They did not physically hurt us so I do not think they are bad. I hope I never see one again.