We thoroughly enjoyed our long weekend at the DoubleTree Fallsview over American Thanksgiving Weekend. I especially loved the pool area (the floor was heated!), the water pressure in the shower, very fast elevators, the lighted makeup mirror in the bathroom, and the walkability to everything touristy. The beds were so comfortable my husband was asking where the pillows were from.
The only thing I would have changed was that we did not seem to have housekeeping - we had to keep asking for cups and coffee/tea for the coffee maker in the hotel room and our garbage was very full when we left. It was very minor, though, and we would absolutely stay here again if we were to come back to Niagara Falls.