I just stayed at the Sheraton last week and saw the Intercontinental briefly. Our driver for the trip to Halong bay stopped at it to pick up a couple staying there. Can't comment on the hotel - however, location is not the greatest since it is 2-3 kms from the center of Hanoi and the action and will require cabs to get back and forth. It will provide more peace and quiet though, being away from the town.