I just saw this tonight, and without giving too much away, I wasn't very impressed. I loved the first two, but this one started off well but rushed the ending. My wife kept hiding her eyes. I'm wondering what was in the envelope that Amanda read at the end. If they explained it, it went over my head.
It ALSO gets the "better'n Family Guy" from me tonight...which, again, isn't saying much. Mrs. Lowenstein driving Roberta home was a nice callback as well as a nice reference that they pretty much forgot about her all episode.