I lived in in attic room. The outside was a bat nest. Believe it or not, they are not bad neighbors. Everyone freaks out because they don't see them much (nocturnal) but they really kept my attic clean of bugs and other annoyances. A couple times I found a bee during the day, but no flies/insects. They took care of spiders too, believe it or not.
They don't freak me out. They used to, before I lived there. And they always fly around in the attic when I was up there. They never smacked into me, because of their sonar pings. I actually don't mind them, they were good neighbors.
Just because they look different and only come out at night, there's a mass of people who are scared. They don't hurt humans. They co-exist peacefully. The only downside is they shit everywhere. I mean EVERYWHERE. Messy creatures.