At one school, I had an AO tell me that I had an almost-definite acceptance based on my interview, and then the school WL’ed me. One school, I got rejected but the interview was sort of casually awful and really late, as well. My three accepted schools, I was told very encouraging things, two of them hinting in a sort of casual way that I had impressed them a lot and might be accepted and the third being a little more vague but still kind. Still very surprised in that I was accepted at my “reach” schools that were top three picks and WL’ed almost everywhere else.