We only had a overnight stay in the heathrow Marriott so none of the above catagories apply, Nevertheless our short stay was very comfortable, and I would not hesitate in recommending this hotel
Family room was offered hence we could stay in the one room as a family.
Price of the restaurant
Cleanliness of room
The Execuitve Lounge was very small and uncomfortable and certainly not worth paying for an upgrade to get use of it.
I thought the reception into the hotel was excellent, the staff were very helpful and polite. The room was well appointed, comfortable and very clean.