We just went to the preview office and they let us go. It was around noon. There were several DVC owners who were there at the same time so they sent us all together. They do have an open preview from 5-7 pm.
we went thursday night. around 6:30 pm. There was a nice outside buffet set up (Boma-type food). Also they were giving out little cards with wooden giraffe magnets on them. Very cute. Studio and one bedroom on display.