In Tasu, a hotel needs to provide a certain number of upscale amenities to earn a 5-star rating. These can include on-site gyms, spas and saunas, gourmet restaurants, premium bedding, complimentary luxury toiletries and more. What also sets 5-star hotels apart is their guest-focused service. You'll enjoy things like in-room massages, nightly turn-down services and concierge services. Some may also offer additional touches like a welcome gift.