"Pros: My first initial long stay was just average as they gave me 2131 which was disappointing as it didn't feel like a 4 star hotel, this room is the one I stayed the longest due to the itinerary of my trip. 3rd to 14th. The room was very dark and only had 4 lights. One by the door, 2 bedside lamps on each side of the bed and one in the toilet. The room only had one fixed socket location which made charging anything an absolute headache. We had 2 large suitcases which we didn't have enough room to open both so we had to alternate. It was less than pleasant so I didn't take any pictures as I was somewhat embarrassed to show. Now the second leg of the trip which started on 18th to 21st, they upgraded my room to 2416 which is soooo much better. It's what you really expected from a 4 star hotel. Plenty of lights in the room with different options to turn them on or off and a surplus of sockets to use. The third and final part, 21st to 24th.. all thanks to Heathrow being out of commission due to a nearby fire..... They allowed us to stay on the same 24th floor at room 2422. I personally would only choose the rooms that are on the highest part of the hotel. This review only warrants the 5 star is due to your staff who upgraded us and gave us the same floor due to a stressful end part of the holiday. Please take this as a constructive criticism as I look forward to coming back in the future. The other rooms are definitely sub par to what you claim your hotel to be and I think it could have been better if the rooms are slightly changed for decorated stand point and a few more thoughtful additions to them." ~Kira