Faultless guest service is the defining feature of every 5-star hotel in Pho Si. From the minute you step through the door, staff cater to your every whim, whether arranging valet parking or providing a nightly turn-down service. What's more, hotels must offer upscale conveniences to be considered for a 5-star rating. These can include luxury bathrobes, saunas or spas, pools, fine dining restaurants and knowledgeable concierge.