With its crystal chandeliers, marble floors, and voluminous lobby, the Sheraton Santiago is all about glamour. The Sheraton is actually two hotels: the older Sheraton with standard rooms, and the luxurious San Cristóbal Tower with conference centers and executive rooms. The upside to the Sheraton are its spectacular views of Santiago and the Andes (any room on the 10th floor and up), but the downside is that the hotel is cut off from Providencia by the Río Mapocho and a busy thoroughfare, meaning you must take a cab or walk to the nearest intersection, cross and continue on for 5 blocks (about 15 min. to the nearest Metro station).
It is recommended that travelers only consider rooms in the San Cristóbal Tower due to the worn state of the standard rooms in the older wing; for value, you'll find higher quality standard rooms elsewhere in Santiago. Executive guest rooms and suites in the Tower complex are top-notch, with plush beds and polished furnishings; each floor has its own butler, and there's a private lounge for breakfast or tea on the 21st floor. The Sheraton occasionally sells out to visiting conventioneers. Note that their restaurants are pricey; better to grab a cab and dine in Providencia or Bellavista.