You might have heard about Vistana Signature Experiences, a resort family under Marriott Vacations Worldwide. Vistana builds, develops and sells vacation ownership at over 20 resorts internationally. Sheraton and Westin are both timeshare club brands that fall under the Vistana Signature Experiences family of resorts. Families love being owners of Vistana timeshares because of this great flexibility. But...