This achievement celebrates excellence in hospitality and is only presented to businesses with consistently outstanding traveler reviews on the world’s most trusted travel review site.īusinesses must maintain a rating of at least four out of five bubbles and have a minimum number of reviews to be considered for this distinction. – June 28, 2018) The travel company, TripAdvisor, announced Harrah’s Ak-Chin Casino as a 2018 recipient of their Certificate of Excellence.