As far as seeing each other, it's actually more like "blowing a kiss" as they aren't usually that close, and plant a few ligustrum trees and you'll never know they are there.
If your neighbor is loud, you're gonna hear that from much more distance than the lanais are spaced.
But those in the forum are right when they say that it depends on what you can live with. If it freaks you out, don't do it.
